birth control
"I would go a year  with no period. When I did, it would last 3-6 weeks with debilitating cramps & severe bleeding (bleed through a Super  tampon in a few hours). Previous 2 docs said this was normal for someone not on birth control. Finally found a new doc & he ordered blood work & an ultrasound. Come to find out, my estrogen levels were super low, testosterone was high, & I had Polycystic Ovary Syndrome (PCOS). Since starting this birth control; my period happens like clockwork, it only lasts 3-4 days, & the pain has practically disappeared, only light cramps now & then. No significant weight or mood changes-already had issues with both to begin with. Definitely no change in sex drive."