yeah its quite habit forming. once you realize everything is better when stoned(movies,games,work,play,school,etc...), youre gonna crave for it when its gone. but thats nothing like "junk sickness" or withdrawal from opiates wherein its effect are really physical such as cold weat, vomiting, diarrhea, fever, insomnia. the only thing ive experienced fro the stoppage of smoking weed is restlessness, more energy, insomnia,