I think dismissing PMS as non existent just as bad as men who dismiss women having any emotions as just being hormonal. It's real and it sucks but it does not mean guys get to say my every emotion is due to this.

I find that some months my anxiety goes up and I never know why until I figure out PMS. So I'm not waiting for it to happen it just does. I also suffer nausea which not a lot of people seem to but consistently the few days before I get full very fast and feel a bit sick. So that's a joy too.