I notice a couple of days ago i had noticed a red bump right under my left breast along probly my 5th rid. I didnt think anything of it anf i continued with my day. Well I just got out of the shower like 20 mins ago and it is not lager and has a puple line alomost going across the red. It does not hurt itch or bother me but i am conserned about what it could be. I am 17, I live in Big ol Texas and I am white. Whats is it.?