birth control
"Got on this birth control a few years back because I was pretty young and inconsistent with the pill. I was 19 when I got it and it was fine at first, normal period cycle for about 6 months. Then I had no period for months. So long I literally can't remember. I experienced hair loss and a lot of weight gain! Like 20 lb. absolutely ridiculous. Got it out when I was 21 and haven't been on anything since."