I don't know you, so can only share my experience. When I am hypomanic (as I am currently) my anger is nasty and vicious. I will lash out at my fiance for absolutely no reason at all, start fights, drop F bombs, bring up the past, say things I definitely shouldn't say, and get so angry and irritable that I boil inside and shake.
I wish I had that elated, happy mania, but oh no! It's definitely not that! I'm sorry you don't feel like your team is listening to you, but at least you have a place here to talk things out.