Would a different kind of stirrup help? What do you ride in now? Polymer Comfort Cushioned Trail Stirrups - Horse.com
I've never tried these, but if they supposedly help stop foot numbness maybe they'd help you hurt less? Or even just a different shape of stirrup?
I hope that helps give you some ideas! It may not be too much help but I know it sucks to not be able to ride because of pain :(