The symptoms of marijuana withdrawal include but are not limited to:
irritability
anxiety
physical tension
decreases in appetite and mood
stomach pain
physical tension
restlessness
anorexia
insomnia
increased aggression / anger
strange dreams
Because Marijuana is an illegal substance, many people consider any use of marijuana as substance abuse. However, this is said because substance abuse is a maladaptive pattern of repeated substance use created by recurring common adverse consequences (effects and side effects). Not everyone suffers the withdraw symptoms of marijuana, and uses it just to have a good time, or for an recent injury that is causing allot of pain (broken bone,major burn, abrasion,chronic pain). Its good to practice to take a break from marijuana for a month or longer so the withdraw symptoms can be identified by the person themselves and countered with a few remedy's that really work.