Which is reassuring, I guess.
Things that guys should know about girls (really. It's a survival skill...or will be one);
aka I can't believe you don't know about that!
1. We pms about 6 days before our period - all of the 6 days!
2. Pms actually means: bloating, mood swings, body aches, tiredness, acne sigh, and other stuff which you can google. Varies depending on the person.
Ok so this isn't all that's on the list haha. I'll continue some other time, if I feel like being...I don't know, mildly annoying? Self-justifying? HAHA. K.