Stroke about year ago. recovery going well but left arm locks if not moved. sleeping watching tv etc. painful when unlocks, like electric shock.

See physician: At 72, you may have arthritis, pinched nerve, or a complication of the stroke. See your family physician first, then your neurologist if needed. A good, thorough exam should help determine the cause of this problem.

Check it out: If you are cleared by your md you may want to see a chiropractor and a massage therapist. Is is quite likely a problem with musculoskeletal system due to the physical stressors related to stroke and recovery.