I've been on Bupropion since February 2008 (100mg twice a day). I...

I've been on Bupropion since February 2008 (100mg twice a day). I have terrible memory loss and I'm talking if you tell me something today, I probably won't remember it tomorrow! I can't find the right words to say. I will be thinking about what I want to say but when I say it, I either can't think of the word I want or use a completely different word that confuses the person I'm speaking with. My anger has increased severely! I have NO patience. Hair loss...OMG! I'm freaking out! I'm afraid to quit taking the drug because I don't want to relapse but sometimes I don't think this damn drug is helping anything! In fact, it's making most things worse! Oh yeah...I am having a really hard time losing weight as well.