Has anyone else experienced this? I'm assuming it irritability with a dash of underlying anger issues?

I noticed this started when I went off my meds 7 years ago. For example, I saw a neighbor dragging her chihuahua almost pulling it in the air by it's leash. The dog had a collar on. Regular people would normally not step into this situation. I did I instructed her on how to walk her dog. She was not pleased. 

If my mom is being toxic, instead of getting off the phone with her and reducing contact, I'll feel the need to try to convince her she is being toxic. 

I'm supposed to "make nice" with people like those that work at my apartment community. One of the leasing agents mocked my emotional support animals by calling them emotional support pets, twice, in a mocking tone (she knew what she was doing). Ever since then I haven't been nice to any of the staff here. 

I joined a hobby group. The de facto leader is sexist, elderly (in his 70s), and thinks he can pick on me. I told him to back off but he did it again online. At first I played his game and sucked up, but I realized later that doing that made me want to puke. So I called him an old folgy and called his chime-in buddy a flying monkey.

In these situations, I just unleash. I don't plan, I don't decide a course of action.  

Am I still irritable? I just don't like people. Especially the toxic ones. I can't hide that I don't like them. But now it will be award if I attend my hobby group again.