birth control
"I first went on this pill when I was 20 years old. Everything seemed to be fine. Periods were lighter, no mood swings, no weight gain. Acne was so so. Skip ahead 2 years later and went on a trip and forgot to bring my birth control with me because I had my period at the time and the days just evaded me. So I waited until my next period to take it again. Once I got back on it, I had intense mood swings for no reason and tremendous weight gain that keeps continuing. I gained 30 pounds in 6 months since getting back on the pill. My eating habits haven't changed and I've actually been more active but pounds keep coming. It definitely effects sex drive because the month I was off it was high and then went low again after."