Boob pain

Alisha

So I get continues pain in my Breasts I have had this pain for coming into 3 years the doctors can’t find anything wrong and said it’s because of my age I was 15-16 when the doctor said that, I’m 19 now the pain has just got worse,

It kills me when going over speed bumps, Rocky grounds even running is painful.

I don’t know what to do or what it could be?