I switched from celexa to wellbutrin...celexa made me gain 40lbs!...

I switched from celexa to wellbutrin...celexa made me gain 40lbs!!! Losing weight was so hard and for me thats unusual...My doctor thought if that was my concern i should try wellbutrin. I have only been on Wellbutrin for 4 days. Im spacey and moody and energetic. But at the same time I want to sleep. Its weird. Do these side effects go away? I hate feeling the first two. Also-very weird...I know you arent supposed to drink on it but I figured what the heck...so I went out with some friends. I drank seven drinks in the course of like 6 hours and did not feel anything but a remote buzz. Very strange. Usually that would get me drunk. What a waste of alcohol and money! :>