Cannabis Recovery Guide
Cannabis Withdrawal Symptoms
Klar tracks 47 withdrawal symptoms across your 90-day brain reset. Below are the most common symptoms people experience when quitting cannabis — each with science-backed explanations, timelines, and coping strategies.
47
Symptoms tracked
90
Day brain reset
47%
Experience insomnia
80%
Experience cravings
Sleep
2 symptomsInsomnia
Difficulty falling or staying asleep is one of the most common and distressing cannabis withdrawal symptoms, affecting up to 47% of people who quit.
Vivid Dreams
Intense, cinematic, sometimes disturbing dreams are a hallmark of cannabis withdrawal caused by REM sleep rebound after years of THC-suppressed dreaming.
Physical
15 symptomsNight Sweats
Waking up drenched in sweat is a common physical withdrawal symptom caused by your endocannabinoid system recalibrating its temperature regulation.
Loss of Appetite
Reduced hunger or complete loss of appetite after quitting cannabis is caused by disruption of the endocannabinoid system's role in hunger regulation.
Headaches
Headaches during cannabis withdrawal are caused by changes in cerebral blood flow, serotonin fluctuations, and general neurochemical readjustment.
Nausea
Stomach upset, queasiness, and occasional vomiting after quitting cannabis reflect your GI tract readjusting to functioning without cannabinoid input.
Fatigue
Extreme tiredness and low energy during cannabis withdrawal, caused by dopamine depletion and disrupted sleep architecture.
Dizziness
Lightheadedness and vertigo during cannabis withdrawal, caused by blood pressure changes and autonomic nervous system recalibration.
Restlessness
Physical agitation and inability to relax during cannabis withdrawal, driven by norepinephrine surges and GABA depletion.
Muscle Tension
Physical tightness, aches, and muscle pain during cannabis withdrawal from autonomic nervous system hyperactivity.
Hot Flashes
Sudden temperature swings during cannabis withdrawal caused by thermoregulation disruption in the endocannabinoid system.
Tremors
Mild hand tremors and shakiness during cannabis withdrawal from nervous system hyperexcitability.
Dry Mouth
Paradoxical dry mouth during cannabis withdrawal as salivary gland CB1 receptors recalibrate.
Chest Tightness
Chest pressure and tightness during cannabis withdrawal, usually from anxiety-driven muscle tension and hyperventilation.
Appetite Rebound
Excessive hunger that appears 2-3 weeks after quitting weed, as appetite regulation overshoots during recovery.
Weight Changes
Weight fluctuations during cannabis withdrawal — initial loss followed by potential gain as appetite regulation normalizes.
Eye Twitching
Involuntary eyelid spasms during cannabis withdrawal from nervous system hyperexcitability and magnesium depletion.
Psychological
5 symptomsAnxiety
Heightened anxiety is one of the most common and persistent cannabis withdrawal symptoms, driven by GABA/glutamate imbalance and cortisol dysregulation.
Cravings
Intense urges to use cannabis are driven by your brain's conditioned reward pathways and can be managed with evidence-based techniques like craving surfing.
Low Motivation
Loss of drive and inability to start tasks during withdrawal, directly caused by depleted dopamine systems.
Paranoia
Suspiciousness and irrational fears during cannabis withdrawal from amygdala hyperactivity and threat processing changes.
Derealization
Feeling detached from reality or that the world is not real during cannabis withdrawal, caused by dissociation and perceptual processing changes.
Emotional
5 symptomsDepression
Low mood, emotional flatness, and loss of motivation after quitting cannabis are driven by temporary dopamine system disruption and take time to resolve.
Irritability
Feeling easily angered, short-tempered, or snapping at people is a direct result of your brain's stress response system running on overdrive during withdrawal.
Mood Swings
Rapid, unpredictable emotional shifts — from fine to furious to tearful within minutes — reflect your brain relearning how to regulate emotions without cannabis.
Emotional Numbness
Inability to feel emotions — positive or negative — during cannabis withdrawal, caused by endocannabinoid and dopamine system depletion.
Intense Emotions
Overwhelming emotional intensity after the initial numbness phase, as the endocannabinoid system and emotional processing circuits recover.
Cognitive
3 symptomsBrain Fog
Difficulty concentrating, poor memory, and mental sluggishness after quitting weed reflect temporary cognitive impairment as your brain recalibrates neurotransmitter systems.
Memory Issues
Short-term memory deficits and forgetfulness during cannabis withdrawal as the hippocampus recovers.
Poor Concentration
Inability to focus or sustain attention during cannabis withdrawal as the prefrontal cortex recalibrates.
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Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Cannabis withdrawal symptoms vary by individual. Always consult a qualified healthcare provider. If in crisis, call 988 or text HOME to 741741.