55 yo fe 8 mos feet pain top&ball of ft. dpm denied neuroma. feet/lumbar mris, emg, blood tests-ok except high b12, low d. leg pain sitting/elevated?

Many possibilities: Your pain could be as a result of many different things. A thorough history and physical exam and possibly some laboratory and radiology exams are needed to determine the exact cause. Causes of pain may include: trauma (fracture, sprain, arthritis), infection, metabolic conditions (gout), musculoskeletal or biomechanical abnormality and neurologic conditions (neuropathy).

3 possible sources: Foot pain can come from local (foot) issues, from nerves that go to the foot or from the spine. If there is back or leg pain as well, look to the lumbar spine discs or the sciatic or peroneal nerves as the source of pain. If the pain is only in the foot, it could be nerves, tendons or joints of the foot. Since you wrote "feet" pain, i would worry about peripheral neuropathy from diabetes.