anxiety
"I started bupropion 150 once/day 2 months ago, after suffering increasing issues with anxiety and inability to think rationally. I found myself unable to cope with normal day to day issues. This medication has helped, but be careful. As many others have indicated, it's tough adjusting to it - for me it's insomnia and irrational thoughts. And even  though I "feel" better, my anxiety has not dissipated, just have fewer episodes. However, be aware...as I did crash hard a few weeks back, and it was WORSE than ever. I came through but left me little worried, as I went to a very dark place. I feel great now, so maybe it's just finally kicking in? This battle with anxiety has opened my eyes, and I'm scared of what future holds for me"