Same here.......I carried the MDD diagnosis for over a decade and wondered why the hell I was unstable on antidepressants. It was a year ago tomorrow that I finally received the right diagnosis, and it explained almost everything about the way I've been for most of my life. You cannot imagine what an immense relief it was for me to know at last that I was NOT defective---that I had a brain disorder, not a weak character or a bad disposition.

I don't know whether you are bipolar or not, as I'm not a psychiatrist and can't diagnose you; however, you need to see one in order to be properly diagnosed and treated. Your internist or family medicine doctor isn't the right person to do so either---bipolar is just too complicated for a generalist to deal with.

Wishing you the best, and welcome to PC!!