I wish I knew!! I am having the same problem. My foot, after a full day on it, even starts to hurt up my leg stopping 1/4 way upmy calf and swelling. I did start NIA classes about 3 wks ago. My doctor did not recognize what was going on either. I have an HMO I insurance, so I have to wait 4-8 wks to get an appt with Podiatry! Anyone had this?