I've been on Lexapro for almost a year now since my last hospital stay. I thought it was working well until 3 days ago i started getting verry irritable and then the anxiety and depression set in. Since then ive been a wreck on a rollercoaster feeling anxiety and depression one moment then happy and calmness the next. Sometimes i even feel happy and depressed simultaniously which is hell. O have some klonopin but it doesnt help much and i dont like relying on benzos. The only thing that seems to help is drinking. Whats wrong with me? I have no appetite, ive been puking. Why isnt lexapro working all of a sudden? Do you think I might have some form of Bipolar? Please help.