BEVERLY ~ my gut reaction to your post is to suggest you keep off your bad foot as much as possible, so that it can heal. Have you ever tried a cane to get some of the pressure off your sore foot? I find using canes really help my legs & back a lot. Also, when my feet start to hurt, I put them up right away now for about 1 hour and that helps a lot too. What I mean is short rests every few hours or so; which is what my doctor suggested.
Do you have any low dose pain meds that might help when it's really bad? I would ask your doctor why your new brace is causing more pain, rather than less. Maybe once the pain is lessened, you won't need to eat. Try drinking some hot tea and taking a nap -- that also might help you too (can't eat while sleeping and sleep is so healing).
Am sending up prayers for you too ...