birth control
"My experience on this was bad. The only reason I hate this is because of headaches. They were so bad my eyes would not focus and they would get lazy, I tried everything and didn't notice it was my pills until I switched. I switched because I got weird cramps. It has helped against pregnancy, no gain weight, normal appetite, but the headaches were bad. When I went on my other pills I didn't like them so I tried to switch back to those and noticed right away the headaches. Not my favorite but it's different for everyone."