It certainly sounds like you are experiencing some troubling changes. For me, irritability is the main symptom of hypomania, and I lose my verbal filter and pretty much say whatever unpleasant thought pops into my head. So, naturally, I just want to hide away until the episode has passed, and usually end up sitting in my room, on edge, struggling to sit still. After that I'll always crash, which involves going from hating everyone else back to simply hating myself (which is easier to hide).

Does anxiety normally accompany your depression? If so, I guess that would be a major red flag for you. The intrusive thoughts sound worrying, too.

I hope the appointment with your psychiatrist goes well, and that you can figure something out without having to adjust your medication too drastically. Maybe just an increase or decrease in dose of something? I recently had an episode of depression, and the psychiatrist just increased my dose of Lamictal. It has helped. Good luck!