I have major swelling and pain (it's like a huge bruise) in right foot in the back of heel; very low and to the outside. Not near the Achilles Tendon. I am developing the same thing in the left foot (same location). Right "bruise" is so swollen the skin split and it weeps a clear fluid. Regular physician was stumped. Visited a podiatrist who had no idea what was wrong. Xrays taken, no heel spur, no foreign object, nothing. Have been surfing looking for an answer. Nothing seems to fit description other than some sort of inflammatory condition. Any help you are willing to give will be greatly appreciated.