I need help desperately..

Okay, so the past 2-3 weeks my boobs have been sensitive to the touch. I've noticed that the pain started to go away, then my period came early, and the pain became worse during it and after. The pain feels like I'm being stabbed and an intense pressure that sends shocks to my back. Even if I barely set my phone against the girls, I cringe. I'm only 16, I am on birth control, and this has never happened before. Should I tell my mom and all my doctor OR should I just stop worrying?