birth control
"First month was absolutely horrible. This is my first birth control pill. The nausea seemed to occur 2 hrs after taking the pill (I take it at 3pm everyday). I was also unmotivated and felt like my back ached all the time. 

Then it got better. I don't get headaches anymore. But looking back, I definitely gained weight, like A LOT. I didn't lose my sex drive. Anyway, I'm okay now."