depression
"The first few days while taking Wellbutrin,which is not really recommended for anxiety but doc recommended giving it a try, were not too bad.  Around week 2 I began to notice I was miserable, angry all the time, and just not feeling like  myself!  I am usually a happy person that laughs alot and enjoys making others laugh!  Wellbutrin changed all that!  I was now a bitter and angry person that found fault with everything!  I wasn't sleeping well, had slight headaches everyday and my head felt cloudy and foggy all the time!  I wasn't able to concentrate which made it difficult for me to function properly at work. I was no longer the happy,silly person I used to be!  This drug totally changed my personality!"