You definatly need to see a Dr., better safe than sorry. My husband of 25 years passed away of skin cancer, nodular malignant melanoma, and believe me, I wished he would have seen the Dr. sooner. He has his lesion for years before I finally won and he went to the Dr., but by then, it was already melanoma. Yours could very well be early stage melanoma, so please see your dr. I have 6 children, five of which are blonde and fair skinned like my husband. I am diligent about checking their skin, and between them, they've had 4 positive biopsies and mole removals. Don't wait, no excuses!! Good luck...remember the earlier it's caught, the better the chance for successful treatment!!!