I was diagnosed with MDD when I was in my late teens but it came and went in waves and I was on and off medication. I was diagnosed with bipolar II when I was in my early-mid thirties. At first it was a relief to know what the heck was going on but like Vertigo, I question the diagnosis. I don't have periods of hypomania or mania ever. I can get talkative and hyperproductive but I tend to think it's because I'm happy not to be in such a deep depression.