Hello, so basically about two weeks ago I noticed a lump/spot thing on the shaft of my penis, it was a lump with a white spot with black on the end, this lasted about a day and a half, then the day after I noticed a red ring around the tip of my penis after masterbating, that went after a few hours, and ever since then my penis looks abit blotchy and dry after masterbation, I also had 2 nails fall of after going jogging which has never happened to me before, Any ideas what this might be? Im 15