you are not bipolar because you are not depressed also you dont have mania episodes. You simply have anger management issues. Talk to a counselor and get some tips on managing your anger . My father is just like you , short-temper, he is fine as long as he learns to calm down and controls his mood disorder. Integrate proper sleep patterns and some sort of physical activity..and see how you feel.

Trust me bipolar is much more complex in terms of symptoms...i mean when i am in mania state...i am way too irritable, words dont come out of my mouth at whim, yes..i feel like someone has strangled my neck...I feel tensed. easily distracted, cant keep up with the conversation...so on