okay so you there's the nipple the around the nipple is usually like a dark circular shape. Well that dark circular shape in not really a circle. It's has to be kinda new cuz i never noticed it before. Cancer is very big in my family everyone usually gets cancer or alzheimer whichever attacks you first. and also when i press in on the nipple it's very sensitive. SO COULD THAT BE CANCER OR SHOULD I NOT WORRY?