The heel of my right foot also was black and there was a skin graft performed on it with a piece of skin cut from my thigh. My purpose of submitting this is hopes of finding other survivors like me to help me understand how to walk again. I can walk but am in severe pain and have developed large blisters and callous. Over the last 16 years I have developed hip, knee, back, shoulder and neck pain. I basically use my upper body to propel myself forward. I am a healthy 57 yr old woman, no diabetes.I have been to so many doctors and no help.