birth control
"Took the first pill, not expecting many side effects. Took it after dinner, and by the time it was like 2am I woke up extremely nauseous, ended up spending the entire night and morning throwing up. I was very nauseous for a couple weeks. And every new pack I would get the sickness again. Very bad the first week of each pack and still nausea most of the rest of the month. Finally it wasn't worth being sick so much and I switched to a different brand, which I tolerated much better."