I smoked spice, up to 15g per day, and it was seriously like a narcotic withdraw. It was hard as fuck. I was having health issues because of it. Psychologically it made me a nutty buddy. It was basically like being whacked on narcotics.
I smoked the shit initially because I was having anxiety/stress issues because of a very bad breakup with the ex girlfriend. It helped my mind stop racing and cured the anxiety. Eventually though, I was smoking the stuff like cigarettes. On the hour, every hour it seemed like. I was having night sweats and even had to wake up in the middle of the night to smoke. After I got over the thing with the ex, it was more of a time passer. I was bored in a remote work location. Eventually I did it at home. I did so, because I was subject to random pee tests.
I had quit smoking cigarettes for 8 years and started smoking full time, pack a day, simply because I would smoke in a work vehicle, and someone would randomly jump into my truck and I was always worried about the smell, so I started smoking cigarettes to masque and cover the smell.
I have been off spice for about 6 months now. I don't regret it. It was hard, the withdraws were rough. It was worth it though. I'm sane, I'm happy, and I'm back to normal. Even my family can see the old me before I had fallen to addiction.
I smoke weed now, simply because I went haywire at work while withdrawing. I feel as though that cost me my job. Do I feel bad about losing a 85k a year job? Yes. Would I go back and keep smoking the stuff so I didn't get wacky? No. If it cost me a good paying job to get off the stuff, on the inside, I am okay with it. Even during the times where I feel bad about losing control of myself for that period of time.
I smoke weed and cigarettes. In the 10 years I smoked weed, I never withdrew from life and society like I did on spice. I never suffered withdraw symptoms. I quit for 5 and was on the spice for 3 of it. The 3 years were probably the roughest patch of life I lived. So I went back to smoking weed. Back to my roots I suppose you could say.
The hardest part about the withdraws for me was my lack of energy, hot cold flashes, very bad mood swings, and night sweats.
When I smoked the stuff, I felt fine, plenty of pep and energy, and I could sleep. (until I woke up and had to smoke more to go back to bed)
Tell you what man, after it was all said and done. Never happier.
From the heart, best of luck to you. Get off the shit if you can.