I don't have a diagnosis of PTSD, though I believe I have it and working on getting a diagnosis/help. So I don't know how much weight what I have to say would hold.

First I would say to check with your t, to see what they think, and then maybe schedule an appointment with a pdoc to find out for sure.

To me it sounds like it could be an aspect of it. I've found myself getting enraged for absolutely no valid reason. Often that raged is aimed at particular people, although they usually aren't around when it's occuring (thankfully).

What's really strange to me is that I have difficulties getting angry and staying angry. I'll get angry for a short time, then find a reason why the situation is really my fault, or some way to excuse the other person. It's weird, I know.

Another thought is to look at the side effects of any medications you're on. Oddly enough, it could be a side effect of one of those. Anyway, good luck.