re: question about menstruation & pain
@headbanged I'm past that stage, but what helped me was ibuprofen in prescription-level doses. IANAD, and don't take this as medical advice, but prescription doses are typically 400-600 mg, sometimes more.
I still had trouble with dizziness, but that was because I was losing large amounts of blood. Finally had to get surgery to deal with it.
But a few days of high-level ibuprofen (and snacking on edamame) made a big difference in the pain levels for me.