PMDD???? I'm sorry, but I'll have to take a moment to laugh.... It's NOT a disease, it's HER! She's using it as an excuse to cheat on you and belittle you honestly. If you said schizophrenia, I might believe it, but honestly, get the h3ll out of there. That's a bunch of poop-on-a-stick, and she's not doing it accidentally. Sorry for being harsh, that really does suck big ones, but dude.... Just, no.