hi, I am probably worrying about nothing, but I was just curious...I am a fair skinned person, and for as long as I can remember I have had this raised, blackish spot on my chest. I always just assumed it was a mole, but no it has started to morph. I know that sounds weird, but I don't know how else to describe it. It is becoming oddly shaped and peeling off in some spots. Could this be skin cancer, or just a strange mole?