Have you made an appointment to see a psychiatrist yet? If not, you really should. The flashes of anger are part of the bipolar, it's agitation, I think, from being really overwhelmed. I get it too and am horrified by it. The fact that I am so repulsed by my behavior stops me just a little bit the next time, a little bit more the time after that and now I really can stop it sometimes and stay in the moment and be calm. I just don't let myself forget that I can get like that and remind myself how much I do not want to be that scary person that says horrible things I don't even mean and or/ possibly gets physical with another person. It helps me hold on to myself when I feel my anger flare, I think of the consequence too...Hope this helps you somewhat, Good Luck