Do you have flat feet? My family doctor missed this and said I probably have arthritis. I don't.
If you do have misdiagnosed flat feet, more info in this previous thread may be helpful to you:
http://forums.psychcentral.com/healt...-foot-abs.html
It also includes a food pain diagnosis tool, from the web page that our regional specialist foot clinic referred me to when I finally got properly diagnosed with this common ailment of middle aged people. Maybe it'll help you learn more about your specific problem(s).