For several months I have had the top of my feet cramp up and feel like there is a million pins sticking in to them. The bottom of my feet are numb. I have been to three specialist's. Have had MRI, lots of blood work, and several more types of xrays taken. Three doctors can find nothing. All they tell me to do is try vitamin B12. I am taking B12 plus a good multi vitamin and minerals. They do not seem to be doing the trick. Has anyone heard of this and gotten help? Appreciate anyones help. Thanks