Marijuana Withdrawal Symptoms: Every Symptom Explained
Withdrawal & Recovery
17 symptoms
Every marijuana withdrawal symptom explained — what it feels like, why it happens, and exactly how long it lasts.
Bahji et al., JAMA Network Open, 2020
Bahji et al., JAMA Network Open, 2020
View as imageYou stopped using weed and now your body is doing things you did not expect. Maybe you are drenched in sweat at night. Maybe you snapped at someone you love over nothing. Maybe your stomach is wrecked and you cannot eat and you are wondering if something is seriously wrong. Nothing is wrong. Your brain and body adapted to regular THC, and now they are readjusting without it. What you are feeling has a name, a cause, and an end date.
This is a complete list of marijuana withdrawal symptoms, both the ones officially recognized by psychiatry and the ones that millions of people report but rarely see validated. For each one, you will find what it actually feels like, why your body is producing it, and roughly how long it lasts.
Key Takeaways
- Marijuana withdrawal is a real, DSM-5 recognized medical condition that hits roughly 47% of regular users
- Symptoms show up in your mood, thinking, sleep, and body because THC affects receptors throughout your entire system
- Most symptoms peak between days 2 and 6, then steadily get better over the following weeks
- Sleep problems tend to hang on the longest — sometimes up to 45 days
- Every symptom on this list has a biological explanation and a predictable end point
- Withdrawal is uncomfortable but not medically dangerous, and it resolves fully once you stay off weed
Symptom Overview
Before diving into detail, here is every symptom at a glance with its typical timeline.
Symptom Guide
Every Withdrawal Symptom at a Glance
17 symptoms grouped by category — with peak timing and resolution window
Peak: Days 3–5
Resolves: 3–4 weeks
Peak: Days 3–7
Resolves: 2–4 weeks
Peak: Days 4–7
Resolves: 2–4 weeks
Peak: Days 3–10
Resolves: 3–4 weeks
Peak: Days 1–7
Resolves: Up to 45 days
Peak: Weeks 1–3
Resolves: Up to 45 days
Peak: Days 1–10
Resolves: 2–3 weeks
Peak: Days 1–7
Resolves: 4–6 weeks
Peak: Days 3–10
Resolves: 1–3 weeks
Peak: Days 1–7
Resolves: 2–3 weeks
Peak: Days 2–7
Resolves: 10–14 days
Peak: Days 2–5
Resolves: 7–10 days
Peak: Days 1–7
Resolves: 7–10 days
Peak: Days 2–7
Resolves: 2–3 weeks
Peak: Days 3–14
Resolves: 2–6 weeks
Peak: Days 3–14
Resolves: 3–4 weeks
Why There Are So Many Symptoms
Before getting into the list, it helps to understand why withdrawal touches so many different systems in your body. THC works by binding to CB1 receptors, which are part of your endocannabinoid system (ECS) — your body's built-in cannabis-like signaling network. These receptors are not just in your brain. They are in your gut, your lungs, your skin, and your peripheral nerves. For a full explanation, see your endocannabinoid system explained simply.
When you use cannabis regularly, your body reduces the number and sensitivity of these receptors everywhere. A 2012 PET imaging study in Molecular Psychiatry confirmed that CB1 receptor density drops significantly with chronic use and takes approximately 28 days to normalize after quitting.[1] During that gap, every system that relied on those receptors is temporarily dysregulated. That is why withdrawal is not just "feeling bad." It shows up in your mood, your sleep, your digestion, your body temperature, and your thinking.
The DSM-5 recognizes seven categories of cannabis withdrawal syndrome symptoms. But the clinical list does not capture everything people actually experience. A 2020 meta-analysis found that approximately 47% of regular cannabis users experience clinically significant withdrawal.[2] A systematic review of the neurobiological mechanisms behind these symptoms confirmed that each withdrawal symptom maps to specific receptor changes in identifiable brain regions.[3] This guide covers both the DSM-recognized and commonly reported symptoms.
Emotional and Mood Symptoms
Irritability, Anger, and Aggression
This is the single most commonly reported withdrawal symptom. It often catches people off guard because the intensity feels disproportionate. Small things that normally would not bother you suddenly feel enraging. You might snap at a coworker, lose patience with your kids, or feel a simmering anger that has no specific target.
Why it happens. THC activates CB1 receptors in your amygdala (the brain region that processes threat and emotional reactions) and your prefrontal cortex (the region responsible for impulse control and emotional regulation). With regular use, your brain relies on THC to keep these systems in balance. Without it, your amygdala becomes hyperactive while your prefrontal cortex is temporarily underperforming. The result is an emotional response system with the volume turned up and the filter turned off. Research monitoring adolescents and young adults during three weeks of controlled abstinence confirmed that mood disturbance, including irritability, follows a predictable trajectory with measurable improvement over the monitoring period.[4]
How long it lasts. Irritability typically peaks around days 3 to 5 and noticeably improves by week 2. Most people report it fully resolving within 3 to 4 weeks.
Anxiety and Nervousness
You might feel a low-grade hum of anxiety that follows you through the day. Or it might come in waves, with your heart racing and your chest tightening for no clear reason. Some people experience something closer to panic attacks, especially in the first week.
Why it happens. Your endocannabinoid system plays a direct role in regulating your stress response. THC was artificially dampening activity in your amygdala and modulating your body's release of cortisol (your primary stress hormone). Without THC, both systems overcorrect. Research has shown that THC withdrawal triggers anxiety-like responses specifically through CB1 receptor disruption in the amygdala.[5] Human neuroimaging confirms that THC directly modulates amygdalar CB1 receptors during acute anxiety induction, which helps explain why removing THC destabilizes anxiety regulation.[6] For a deeper look at this specific symptom, see the full guide to weed withdrawal anxiety.
How long it lasts. Anxiety typically peaks in the first week and gradually subsides over 2 to 4 weeks. People with pre-existing anxiety conditions may notice a longer tail.
Depressed Mood
Not everyone experiences this, but for those who do, it can be one of the most difficult symptoms. The world feels flat. Things you normally enjoy feel pointless. You might feel sad without a clear reason, or just emotionally numb.
Why it happens. This is closely tied to changes in your dopamine system. THC increases dopamine release each time you use. When you quit, that artificial boost disappears, but your brain's dopamine receptors are still turned down from chronic exposure. The result is a temporary state called anhedonia (the inability to feel pleasure from normally rewarding activities). Your serotonin system, which also interacts with CB1 receptors, is simultaneously recalibrating.
How long it lasts. Depressed mood typically emerges in the first week, peaks around days 4 to 7, and improves steadily through weeks 2 to 4. Full dopamine normalization can take 8 to 12 weeks for heavy users.
Emotional Flooding and Crying Spells
This one is not in the DSM-5, but it is extremely common. You might find yourself crying at a commercial, or overwhelmed by emotions that seem to come from nowhere. Some people describe it as feeling everything at once after feeling nothing for months.
Why it happens. THC numbs emotional processing by suppressing activity in the limbic system (the brain's emotional center). When that suppression lifts, your brain begins processing a backlog of emotions that were muted during use. It is similar to the mechanism behind REM rebound, where your brain catches up on suppressed dream activity. Emotional flooding is your brain catching up on suppressed emotional processing.
How long it lasts. This is most intense in the first 1 to 2 weeks and typically stabilizes by week 3 or 4.
Sleep Symptoms
Insomnia and Sleep Difficulty
Insomnia is one of the most disruptive and longest-lasting withdrawal symptoms. You might lie awake for hours, unable to fall asleep. Or you might fall asleep fine but wake up at 2 or 3 AM and not be able to get back down. A systematic review of human sleep studies confirmed that cannabis withdrawal consistently produces measurable sleep disturbances including reduced sleep efficiency, increased sleep onset latency, and fragmented sleep architecture.[7] For a detailed breakdown and specific strategies, see the weed withdrawal insomnia guide.
Why it happens. THC is a sedative that accelerates sleep onset by binding to CB1 receptors in the hypothalamus (your brain's sleep-wake control center). Your brain adapted to this external sedation and partially shut down its own sleep-initiation processes. Without THC, those processes need time to reboot.
How long it lasts. Sleep difficulty typically peaks in the first week, improves through weeks 2 to 4, and fully resolves by day 45 for most people. This is the longest-lasting symptom category. For the full sleep recovery arc, see sleep recovery timeline after quitting weed.
Vivid Dreams and Nightmares
A few nights in, the dreams start. They are not normal dreams. They are cinematic, emotionally intense, sometimes terrifying, and so real that you wake up confused about whether they happened. This is one of the most universally reported withdrawal experiences.
Why it happens. THC significantly suppresses REM sleep (the dreaming stage) in regular users. When you stop, your brain overcorrects with extended, intensified REM periods. This is called REM rebound. The full explanation, timeline, and coping strategies are covered in the THC and REM sleep rebound guide.
How long it lasts. Vivid dreams peak in weeks 1 to 3 and typically resolve within 45 days.
Night Sweats
You wake up soaked. Your sheets are damp. This can happen multiple nights in a row during the first week or two. For a full guide to this symptom, see night sweats after quitting weed.
Why it happens. Your endocannabinoid system helps regulate body temperature through the hypothalamus. THC was influencing your thermoregulatory set point. Without it, your autonomic nervous system (the system that handles involuntary functions like temperature, heart rate, and sweating) temporarily loses calibration. Night sweats are your body's attempt to regulate temperature through a system that is still recalibrating.
How long it lasts. Night sweats are typically most intense in the first 5 to 10 days and resolve within 2 to 3 weeks.
Cognitive Symptoms
Brain Fog and Difficulty Concentrating
You might find yourself reading the same paragraph three times without absorbing it. Conversations slip away mid-sentence. Tasks that require sustained focus feel impossible. It can feel like thinking through wet cement.
Why it happens. CB1 receptors are densely concentrated in the hippocampus (memory processing) and prefrontal cortex (executive function, planning, and focus). Both regions are temporarily underperforming while receptor density rebuilds. A 2018 meta-analysis in JAMA Psychiatry found that cognitive function, particularly verbal memory and processing speed, improves measurably within 72 hours of quitting and continues improving over several weeks.[8] Research specifically tracking the duration of neurocognitive impairment after cannabis withdrawal has confirmed that deficits resolve progressively, with most measures normalizing within one to three months.[9]
How long it lasts. Brain fog is worst in the first week, noticeably better by week 2, and largely resolved by weeks 4 to 6.
Derealization and Depersonalization
This is less common but deeply unsettling when it happens. You might feel disconnected from your surroundings, like the world is not quite real. Or you might feel detached from yourself, watching your own actions from a distance. Some people describe it as "living behind glass."
Why it happens. These dissociative sensations are linked to anxiety system overactivation combined with disrupted sensory processing in the parietal and temporal cortices. Your brain is recalibrating how it integrates sensory input with your sense of self. High anxiety states, which are common in early withdrawal, can trigger derealization as a protective mechanism.
How long it lasts. When caused by withdrawal, derealization typically subsides as anxiety decreases, usually within 1 to 3 weeks. If it persists beyond a month, it is worth talking to a doctor.
Physical Symptoms
Decreased Appetite and Weight Loss
Food sounds unappealing. Nothing tastes right. You might go an entire day and realize you have barely eaten. Some people lose several pounds in the first two weeks. For strategies to manage this, see appetite loss during weed withdrawal.
Why it happens. THC is famous for stimulating appetite (the "munchies" effect) by activating CB1 receptors in the hypothalamus that regulate hunger signals. With chronic use, your brain partially outsources appetite signaling to THC. When it is gone, your natural hunger signals need time to come back online.
How long it lasts. Appetite typically begins returning in the first week and normalizes within 2 to 3 weeks.
Stomach Pain, Nausea, and GI Issues
Your gut might feel off in multiple ways. Nausea, cramping, diarrhea, or general stomach discomfort are all reported. Some people describe it as a persistent, low-grade stomachache.
Why it happens. Your gastrointestinal tract has its own dense network of CB1 receptors that regulate motility (the speed at which food moves through your system), acid secretion, and inflammation. THC was modulating all of these. Withdrawal disrupts gut function temporarily while these receptors recalibrate. This is sometimes called the "gut-brain axis" effect because your enteric nervous system (the nervous system in your gut) is closely linked to your central nervous system.
How long it lasts. GI symptoms are usually worst in the first week and resolve within 10 to 14 days.
Headaches
Dull, persistent headaches are common in the first few days, sometimes accompanied by pressure behind the eyes or general head heaviness.
Why it happens. CB1 receptors modulate blood vessel dilation in the brain and influence pain signaling pathways. Withdrawal temporarily disrupts vascular regulation and lowers your pain threshold. Dehydration, which is common when appetite is suppressed and night sweats increase fluid loss, compounds the problem.
How long it lasts. Headaches typically peak in days 2 to 5 and resolve within 7 to 10 days.
Sweating, Fever, and Chills
Beyond night sweats, some people experience daytime sweating, low-grade fever, or chills. It can feel like you are coming down with something.
Why it happens. These are all thermoregulatory symptoms caused by your autonomic nervous system adjusting without THC's influence on the hypothalamus. Your body temperature set point is temporarily unstable. The slight fever some people experience is not infection. It is your thermostat recalibrating.
How long it lasts. These symptoms are generally limited to the first 7 to 10 days.
Restlessness
You cannot sit still. Your legs feel like they need to move. You might pace around your house or feel a persistent, uncomfortable internal energy that you cannot burn off.
Why it happens. Restlessness is linked to the combined effects of heightened norepinephrine (your body's alertness chemical) and disrupted GABA signaling (GABA is the neurotransmitter responsible for calming neural activity). THC was enhancing GABA's calming effects. Without it, your nervous system runs temporarily hot.
How long it lasts. Restlessness peaks in the first week and improves significantly by weeks 2 to 3.
Coughing and Lung Recovery
If you smoked or vaped, you might develop a cough after quitting, which feels contradictory. You expected your lungs to feel better, not worse.
Why it happens. When you stop inhaling smoke or vapor, your lungs begin a cleanup process. The cilia (tiny hair-like structures lining your airways that sweep out debris) were suppressed by chronic smoke exposure. They reactivate after you stop, and the cough is your body physically clearing accumulated tar, mucus, and debris. This is a sign of healing, not worsening.
How long it lasts. The cough can begin within a few days of quitting and may persist for 2 to 6 weeks depending on how long and heavily you smoked.
Fatigue and Lethargy
Despite the restlessness, you might also feel deeply tired. These two can alternate or even coexist, leaving you feeling simultaneously wired and exhausted.
Why it happens. Your brain is doing significant repair work — rebuilding receptor networks, recalibrating neurotransmitter levels, and restoring disrupted sleep architecture. This consumes energy. Combined with poor sleep quality from insomnia and REM rebound, physical fatigue is a predictable result.
How long it lasts. Fatigue is worst in weeks 1 to 2 and usually resolves as sleep quality improves, typically by weeks 3 to 4.
Tinnitus
Some people report ringing, buzzing, or hissing in their ears during withdrawal. This is less commonly discussed but shows up frequently in online recovery communities.
Why it happens. The exact mechanism is not fully established, but CB1 receptors are present in the auditory processing areas of the brain. Withdrawal-related changes in neural excitability may temporarily increase auditory sensitivity or produce phantom sounds. Heightened anxiety, which amplifies awareness of bodily sensations, likely plays a role as well.
How long it lasts. When linked to withdrawal, tinnitus usually fades within 2 to 4 weeks. If it persists, see a doctor to rule out other causes.
What Helps During Withdrawal
Understanding why each symptom happens is the first step. Here are the most evidence-supported strategies for managing the overall withdrawal process:
| Strategy | Primary Symptoms It Helps | Why It Works |
|---|---|---|
| Aerobic exercise | Mood, anxiety, insomnia, fatigue | Boosts natural endocannabinoid production; increases dopamine receptor availability |
| Consistent sleep schedule | Insomnia, vivid dreams, fatigue | Gives circadian rhythm a stable target during recalibration |
| Hydration | Headaches, GI symptoms, sweating | Replaces fluid lost through night sweats; supports neurochemical recovery |
| Small, frequent meals | Appetite loss, nausea, weight loss | Bypasses disrupted hunger signals; maintains blood sugar stability |
| Cool bedroom (65–68°F) | Night sweats, insomnia | Supports thermoregulation during autonomic recalibration |
| Journaling / tracking | All symptoms | Provides evidence of progress invisible from inside the experience |
For a complete day-by-day breakdown, see the cannabis withdrawal timeline.
When to Seek Professional Help
Everything on this list is a normal part of withdrawal and resolves on its own. But there are situations where you should talk to a doctor or mental health professional.
Seek help if your depressed mood includes thoughts of self-harm or suicide. Seek help if anxiety is severe enough to prevent you from functioning at work or caring for yourself. Seek help if symptoms are not improving at all after 4 weeks, or if they are actively getting worse after the first week. Seek help if you have a pre-existing mental health condition that is significantly destabilized by withdrawal.
You do not need to go through this alone. SAMHSA's National Helpline is free, confidential, available 24/7, and can connect you with local support. Call 1-800-662-4357. You can also text HOME to 741741 to reach the Crisis Text Line.
For a broader look at cannabis withdrawal syndrome as a clinical condition, or for the full cannabis withdrawal complete guide, see those dedicated resources.
The Bottom Line
Marijuana withdrawal produces a wide range of symptoms across emotional, cognitive, sleep, and physical categories because THC affects CB1 receptors located throughout the entire body. Approximately 47% of regular cannabis users experience clinically significant withdrawal. Most symptoms peak between days 2 and 6 and resolve within 2 to 4 weeks, though sleep disturbances can persist for up to 45 days. Every symptom has a direct biological explanation rooted in the temporary disruption of the endocannabinoid system, and every symptom has a predictable endpoint.
Frequently Asked Questions
Sources & References
- 1RTHC-00573·Hirvonen, Jussi et al. (2012). “Daily Cannabis Use Was Linked to Fewer CB1 Receptors. A Month Without Brought Them Back..” Molecular Psychiatry.Study breakdown →PubMed →↩
- 2RTHC-02407·Bahji, Anees et al. (2020). “About Half of Heavy Cannabis Users Experience Withdrawal. This Meta-Analysis Measured It..” JAMA Network Open.Study breakdown →PubMed →↩
- 3RTHC-01513·Schlienz, Nicolas J et al. (2017). “Cannabis Withdrawal Is Real, Driven by CB1 Receptor Changes, and May Be Worse for Women.” Current addiction reports.Study breakdown →PubMed →↩
- 4RTHC-04251·Sullivan, Ryan M et al. (2022). “Young cannabis users experienced withdrawal symptoms that peaked in the first week of quitting.” Cannabis and cannabinoid research.Study breakdown →PubMed →↩
- 5RTHC-00422·Huang, Peng et al. (2010). “THC Withdrawal Caused Anxiety-Like Behavior in Mice for the First Time.” Neuroscience letters.Study breakdown →PubMed →↩
- 6RTHC-01334·Bhattacharyya, Sagnik et al. (2017). “THC-induced anxiety in humans is linked to CB1 receptor density in the amygdala.” Scientific reports.Study breakdown →PubMed →↩
- 7RTHC-01161·Gates, Peter et al. (2016). “Systematic Review Confirms Cannabis Withdrawal Disrupts Sleep, but Specific Mechanisms Remain Unclear.” Substance abuse.Study breakdown →PubMed →↩
- 9RTHC-03110·Eadie, Lauren et al. (2021). “Medical cannabis patients showed no cognitive impairment 4 hours after THC use across all studies reviewed.” Frontiers in psychiatry.Study breakdown →PubMed →↩
Research Behind This Article
Showing the 8 most relevant studies from our research database.
Prevalence of cannabis withdrawal symptoms among people with regular or dependent use of cannabinoids: A systematic review and meta-analysis
Bahji, Anees · 2020
This was the first meta-analysis to estimate how common cannabis withdrawal syndrome actually is.
Cannabinoid Hyperemesis Syndrome: Diagnosis, Pathophysiology, and Treatment-a Systematic Review.
Sorensen, Cecilia J · 2017
This extensive systematic review analyzed 2,178 articles, ultimately including 183 studies with cumulative case data.
Varenicline for cannabis use disorder: A randomized controlled trial.
McRae-Clark, Aimee L · 2026
Varenicline did not reduce cannabis use sessions overall during weeks 6-12.
Rural and Urban Variation in Mobile Health Substance Use Disorder Treatment Mechanisms and Efficacy.
Mennis, Jeremy · 2026
The PNC-txt mobile health intervention reduced cannabis use at 6 months by increasing readiness to change and protective behavioral strategies at 1 month.
Nabiximols as an agonist replacement therapy during cannabis withdrawal: a randomized clinical trial.
Allsop, David J · 2014
In a double-blind clinical trial, 51 cannabis-dependent treatment seekers received either nabiximols (up to 86.4 mg THC and 80 mg CBD daily) or placebo during a 9-day inpatient admission, followed by 28 days of outpatient follow-up.
Cannabis Withdrawal and Psychiatric Intensive Care.
Malik, Aliyah · 2025
Among 52,088 psychiatric admissions in London over 16 years, cannabis users were 44% more likely than non-users to require psychiatric intensive care overall.
Cannabis withdrawal in the United States: results from NESARC.
Hasin, Deborah S · 2008
Using data from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC), researchers examined cannabis withdrawal among 2,613 frequent users (three or more times per week) and a subset of 1,119 "cannabis-only" users who didn't binge drink or use other drugs frequently. Withdrawal was common: 44.3% of the full sample and 44.2% of the cannabis-only subset experienced two or more symptoms.
The cannabis withdrawal syndrome: current insights.
Bonnet, Udo · 2017
The review synthesized evidence that regular cannabis use causes desensitization and downregulation of brain CB1 receptors, which begins reversing within the first 2 days of abstinence and normalizes within about 4 weeks.