Birth control?

Hello! I am almost 15 years old and I have had my period since I was just 10 years old. Over the course of this past year, I have been experiencing very painful PMS and cramping. I take 2 Midol's on the 2nd day of having my period, and I still would be so nauseous and be in so much pain, I would have to lay in a fetal position and walking almost made me dizzy. Would it be beneficial in my case to take birth control to help relieve this cramping or is there any other suggestions for me? And if birth control happens to be my best option, could somebody please explain any side effects or negatives to birth control? Thanks!