I have been on generic Wellbutrin 150 mg for 3 weeks for PMS. The...

I have been on generic Wellbutrin 150 mg for 3 weeks for PMS. The first week I had some strange side effects: heart racing with light-headedness, constant yawning, weird sensation at the back of my neck. They all went away and I felt fine. However, I stopped taking it 3 days ago because of the severe cramping and diarrhea. My doctor warned me I would have stomach issues the first week - and I did - but now I have it the day after I have an alcoholic drink. So anytime I have a drink, which is several times a week, I have to expect spending an hour in the bathroom the next day. Not even Imodium can stop what's coming. Sorry, but alcohol trumps WB. Too bad too, because it increased my sex drive and suppressed my appetite.