abnormal uterine bleeding
"I'm fairly new to this pill. I have had very heavy, painful periods for the past few months so my doctor prescribed me this. I'm only in my first week but very hesitant on staying with it. I started the day of my period. I've had little cramps and light bleeding so that's great and all, but for the past four days I've had the most annoying headache. Not sure if this pain in my head is worth being cramp free."