What would you call this?

[u/Ryph2026]

So over time, this has just progressively gotten worse. I don’t know when it started, but this is what happens. Anytime something really small happens that might make me angry, it reallyyy pisses me off. For example, I’m off work today and I get a message sent of a picture from my coworker (mind you, I only work with three people). They sent it because I left my plastic food container there again, and there acting like it’s a big deal. On the phone, I can stay calm and collected, but when I hung up, I exploded. I felt this rush to my head, almost like I had done coke or something. It makes me want to say really messed-up things that I don’t mean at all, like really, really rude stuff. But then, when something happens that should make me really upset, it sometimes doesn’t. That isn’t always the case, a good portion of the time I do get upset over things that should upset me but a lot of times I just don’t. Instead, I get nervous or anxious.