I agree, everyone has different withdrawal symptoms. For me personally, the first 2-3 days are the worst and after that I'm ok. The most noticable pain in the ass is that my appetite is all messed up, like I'm not hungry and can barely eat. I also feel slightly off in my mind, like I can't quite think straight on anything. The other big problem is falling asleep. If I didn't happen to smoke all day, the one time I would be SURE to smoke was bedtime because the greenz help me sleep sooooooo good. Other than that I'm fine and like I said, after two or three days, I felt normal, but that's just me. I also run 2-3 miles 5-6 days a week so that helps too.