What Causes Acute Heel Pain Persistently?

hey doc. i have major pain on the heals of both feet. i have had this for a long time. about 2 yrs. its got tothe point if i stay on my feet for more than an couple hours. i have to walk like im on walking on egg shells. the dr at the v.a. gave it a name, but i dont remember what it is. this pain does not go away. ive taken vikondin. not sure how to speel that. to be ride of the pain i hade two take two of them to be rid of the pain. but im a truck drive, so i cant take that medican. its against the law for a truck driver. and no over the counter medican is working.. plz help. why do my heals hurt so bad.. tnks