In June of 2009, I was prescribed Paxil for generalized anxiety disorder. The medication worked well for me for the most part, but about 6 months after starting it, I started to slowly put on weight and NOTHING I did helped. I couldn't even lose a pound. I was on a low carb diet and exercising every other day, and even that did nothing for me. So I went to the doctor and he suggested I switch from Paxil to Wellbutrin because supposedly Wellbutrin will not cause weight gain. I have been on Wellbutrin for 6 days and have already lost 2 lbs. But the downside of this all is I am having Paxil withdrawal. I started weaning myself off about 2 wks prior to starting Wellbutrin, but am still having symptoms. I haven't had a Paxil since I started the Wellbutrin 6 days ago because I was worried about mixing the two medications. The withdrawal symptoms I've been having are not severe, but enough to be a major annoyance to me. The worst symptoms I feel are feeling like I can hear my eyes moving in my head every time I change directions (kinda sounds like a scratching) and EXTREME irritability and anger. It actually starting to depress me how crabby I get and how anxious I am feeling (feels like I am back to square one with the anxiety). As far as the Wellbutrin goes, a hour or so after I take it, I feel fine emotionally BUT I also feel like my heart is beating irregularily, which I know can be dangerous. My father died of a heart arrhythmia at the age of 52. I am only 29, but an irregular heartbeat is dangerous for any age. So I guess my question is could the irregular heartbeat be part of the withdrawal from Paxil, or is this solely related to the Wellbutrin, and therefore I should not take it??? I wish I never would've started with Paxil in the first place. It kept my anxiety at bay very well, but the withdrawal is awful and now I feel like I am in a drug hell. I have never been on meds for anything, and now I feel like my life currently is run by these drugs :-( Any advice anyone has, please help me. It is greatly appreciated.