birth control
"I've only been on this pill for two days... That's why I gave it 5 stars and I know it's a bit rushed but oh boy. I've had an insane head ache all day. I also feel very nauseous, like I could throw up any minute. My heart is also pounding pretty fast and hard. Not sure what that's about but if it doesn't fix within a month I'll definitely be discontinuing this brand."