Nat...Don't mess around go to a dermatologist and have them check you once a year, I do it and they have taken some off of me. They usually say oh you are olive skinned you should be fine
HELLO!! I know a girl who had a melanoma she is in her mid 20's she tanned non stop...she is in very bad shape right now, they took most of her hip and some of her leg, it's not a pretty picture I know, but it's reality. Go get checked for peace of mind