I never knew about the anger and irritability either. It's why I didn't believe the dx for so long. I figured I never had happy hypomanias so I couldn't be bipolar. Looking back, and knowing what I know now, I see my hypomanias manifested mostly as irritable ones in the past. I don't know if it would have changed my acceptance but it's good to know now. The irritability and anger is what drive me to seek treatment last year and go back to treatment this year. I was tired of being a complete ***** all the time, especially to my son and husband.