And if it only affects you, you're lucky. If not, apologise and move on.

We all have our days.
Some people have years of this. I was around for that sort of thing, a particularly rough one that lasted about a decade. At the end of it, I had nothing left and had to leave.
There are only so many bad days in any relationship. Tell me enough times that I'm everything that's wrong in your life, that we should part ways and I should leave, and I'll believe you. It won't matter that you didn't mean it. There's no way back. Some things can not be unsaid.
Beware the Dark Side. It ever beckons.

...cue the comments from all the guys claiming that this is the reason why women shouldn’t be doing this, that, or the other thing. When what they should be noticing is that the phenomenal thing about us is the fact that in spite of all the physical crap we have to cope with from puberty through death, we still manage to to excel!

was having people (men specifically) assume that ALL women have pms or are emotionally affected by their periods.
But NO!
There are plenty of us that you would never be able to tell where we were along in our cycle.
No disrespect OP, but hearing from women who DO suffer from it makes stupid guys assume we all do.

and I dont make assumptions or care about your pms

Has worse PMS than me. Way worse, everyday.

Looks like this has my name on it. Let's see... cranky- check. Moody- sure. Horny-day ending in Y. Re-building a womb!?- get the fuck out! Wait did you say PMS? Sorry about that chief