I go through this too. About two weeks before, my anxiety goes up, I'm more obsessive, irritable, depressed, and generally stressed. Oh, and the insomnia is bad. I talked to my current T about possible PMDD (since my exT mentioned it) and she said it's possible.

The only two treatments I've heard about were birth control or antidepressants, but I'm scared of meds. I have heard about a progesterone cream that you can rub on your lower abdomen during said time, but I don't know if it helps.