sounds plausible to me. after all a number of nerves run up the back of the heel. if you drive frequently and compress those nerves they could give you pain. you might consider wearing a shoe with more cushioning to avoid this problem. some people favor driving moccasins. whatever helps to get the pressure off those nerves. hope you feel better!
i have pain in the upper-outside part of my right heel. can this be caused by driving and resting my heel on the floor?