You gotta sit back and look at your life from season to season, year to year and try to remember if you've engaged in any "typical" manic or hypomanic behavior, and if you've had recurring depression and if so - how severe it was.

I'm bipolar type 2, but I've had two manic episodes - one where I stole my mother's credit card and bought junk online for $2000 dollars; including plane tickets. I was 11-12. The other one was when I was 14, I was extremely promiscuous and I did a lot of drugs/alcohol, quit school etc.

My hypomanic times are more about writing/talking a lot, buying things but not going overboard, cleaning (yeah it's unusual for me to clean), staying up later than I should (8 am now) but still getting my sleep etc. I'm not happy, but I'm not depressed either - I'm more content. I'm more social, I'm optimistic, I want to get things done, I want to start new projects etc.

lifenotworking.blogspot.com
^ From june-september I was depressed, and from september till now I've been hypomanic.