BRISTECD: I (and BOTH of my brothers!) have suffered just once apiece from this painful condition!
All three of us were cured by having custom made/fitted insoles (shoe inserts!) made for us and we quickly recovered once they were put to use.
What puzzles me is why I got this painful condition in the first place and why it has never recurred (thankfully!) - I no longer use the inserts by the way.
I say ask for custom fitted inserts and hopefully that will have the same effect on you as it did on myself and my two brothers.
Hold into the wind
VarmintGuy