I have a dark spot on my leg, which looks like a bruise, but isn t a bruise. It s rather large, 2 inches long maybe an inch wide, kind of oval shaped if I had to give it a shape. It isn t and I just noticed a day or so ago so I don t think it was always there or maybe I didn t notice due to lighting. I have been tanning recrntly, which yes I know isn t good for you, but I have no idea what this could be. Any ideas?