For 6 years or so I have had a small bump about two inches above my bellybutton. It was dark in color and I just assumed it was a mole. Every once and a while I would get an itch there when something irritated it, nothing major. Today (in week 2 of HW) I noticed that it is no longer a raised bump. It has completely flattened out and lightened significantly in color. Now it just looks like a scab that has almost completely healed, and no amount of poking at it seems to irritate it. Could this have been worms? If so, what kind?