Bit of personal insight here, I have anger issues that may border on bi-polar. I've never attempted a diagnosis or treatment, I just try to maintain a cool head. Most of the time I'm rational and level headed. However, there are certain triggers that just make me snap, completely flipping my personality. On more than one occasion, Starcraft 2 was one of those triggers. It only occurred after long heated anonymous mat…
Going from normal to angry is not "flipping" your personality. It's called bipolar for a reason: there are two poles, equidistant from a center. It's also called manic depression: when you're not depressed you're often high as fuck. What you described is called "getting really angry and losing your shit." It happens to pretty much everyone. EDIT: I probably should have written that like less of an asshole. Sorry - I'…
I guess the feeling is hard to describe; "getting really angry and losing your shit." doesn't cover it at all, especially in the situations I can remember. Everybody looses their cool, this is way beyond that for me. The situations where it's come up wouldn't constitute the level of rage I've felt.