depression
"It made me anxious for the first six weeks although I really appreciated the boost in energy.  I got a 30 days prescription for Xanax during that time, that really worked.  (And that's about as long as you should ever take Xanax, btw).   Anyway, I was back to my previous self in 6-8 weeks -- kind of a miracle.  Only side effects occasional light headed-ness.  Every doctor I have talked to about Wellbutrin loves it.  I do too."