In high school my periods were so bad with cramps, etc that I would have to stay home from school because I hurt too much to get out of bed, and I could only walk hunched over double. The pill did wonders to regulate that.
However, I did get my first blood clot from one, which at the time they chalked up to my weight, being that I was in my 20s and a nonsmoker. If only they could see me now, 50 lbs heavier and 3 clots later.....A lot has changed in how BCP are formulated now, though, so don't get too freaked out. Plus, since then they discovered I have a clotting disorder they didn't know existed in 1992.
Motrin sucks, btw, but Pamprin -- YEAH, baby.
Dr. Candybear's prescription is to screw the 70% cocoa stuff and go for full-on chocolate, then stay in bed as much as possible and whine all you want.