I was on Paxil 10 years ago (at 16) and was just prescribed it again. When I was on it before my moods went really flat, but my doctor wanted to try it again because it is really good for depression, panic attacks, and OCD (i'm not the last, but it can't hurt!)
I go back in 3 weeks to check in with her, but from what I remember the nausea is do-able, dry mouth sucked, and the mood flattening sucked. Just keep your activity and mood charts, and let your doc know if any of the side effects get bad.