Isle of weather- I don't even know you, but I think I hate you! I don't believe that my personality changes monthly. I believe that my post-pubescent self has adapted to my hormonal changes; I have to be more introspective, more rational, and higfhly evaluative of my own emotions. If I am short-tempered it is because I am in huge amounts of pain, and I am struggling to keep calm and carry on. I can safely say that my morals, beliefs, my sense of humour, everything that makes me who I am, remain unaltered. To put it simply- don't you dare suggest that women have less integrity when mensturating.
BTW most girls start their period from ages 12-16. That is NOT adult! Your ignorance is showing kid ...
