Welbutrin. Is it really worth it?

I've been taking the stuff for three weeks now, and I'm not entirely convinced that it's the right thing for me to be doing. I'm not allowed to have caffeine, and when I break that I get so nauseous. Not allowed to drink?! Um hello! Wasn't the doc listening when I told her I drink at least a half of bottle of wine each and every day. It seems that when I combine them I fall right to sleep...Not a good symptom if you are away from home. I was told by my doc that this is the stuff they give people to quit smoking cigs...Strangely enough, I was doing better before the Welbutrin. Now, I think about smoking almost as much as I think about sex. It has become increasingly difficult to fight the urges when they are all day long. The one good side effect...My libido has increased. Not that I really needed any help in that area, but now, I'm just insatiable. All I want to do is have orgasms all day long. I find myself craving sex, lusting after every good looking person who passes me by. These new feelings could get me into a lot of trouble...