Random adrenline rushes?

I have an extremely bad temper problem as it is, and whenever I usually get heated about something I get extreme adrenline rushes and get shakey and what not..but lately they've been coming with no reason at all, I'd be perfectly chill and fine but all of a sudden I'd feel like I'm going to lose control over my arms and hands and its extremely hard to keep my hands from clenching and trembling. I don't know if its a medical issue or if I should be worried... Anyone have any answers?