oh boy do I know that feel all too well. For me it was a long A** faze that I don't think really went away. I learned to control it and by then the bipolar changed it's mind and now when I get angry I cry. Don't know which is worse the crying or the want to leash out, either which way try to find a way to release your emontions, perferable without hurting anyone.
Are you having a good day :) or a bad day :(
Either which way glad to meet you. :D