Xray has shown heel spur on R achilles tendon. Similar symptoms on L, but much less severe. Dr says surgery when pain becomes too intense is only option. I had cancer 3 yrs ago..transitional cell carcinoma of renal pelvis. Removed kidney , followed w/ chemo and radiation. My insurance cancelled me when they found the cancer (said preexisting)Without insurance, I limit dr. visits and tests. Could this be related to the cancer, somehow. My B12 levels were also very low. I am now taking B12 shots.