I was feeling that way on Friday. I know exactly what you mean. I was blowing up about everything and at everyone going on a rant about how things are and how they should be. It will pass. I'm still irritable and snippy, but nothing like that day. When I think about the issues that triggered me, I get angry all over again (eg. professionals' ineptitude and blame game while I wished for death it got so bad), but now to a lesser degree. They under-reacted to my serious requests and I eventually overreacted to compensate for that negligence.

Not sure why you're angry, but in this world there are a lot of reasons to be angry. If you're not angry (or depressed), you're just not paying attention. That was a line from one of my short stories, but I took it out because it was too direct. I used the story to explore that theme. That's not to say that some of us have an actual chemical imbalance that causes constant or uninitiated depression that needs to be treated, but even mentally healthy people (which we are at times) get mad or sad at things that are just so wrong in this life.

Hope you feel better soon.