Here's the scoop: A couple months ago a spinning back kick of mine was blocked by my opponent lifting his knee. I hit his knee with the blade of my foot. Ever since then I have had a little lump ont he blade of my foot where I hit his knee. It fuckin hurts! If i press down hard on it, it hurts, and if I run my foot against something that rubs against the lump it hurts. I think I'm going to go to a doctor soon. Anyone know what this could be? I thought it would have gone away by now.