I feel for her. I had awful PMS and some months it was all just pain and stuff but others, sort of every other, it was pain, rage, hating everyone for existing, hating myself and generally about half an hour before the flood started scary suicidal ideation. The older I got the better I was at recognising it and telling friends/partners to steer clear of me because I had little control over it. I wouldn't have wanted to be in a relationship with me - neither did most of my partners! PMDD sounds even worse so I feel for her from the bottom of my shrivelled heart.