I am experiencing electrical shock feeling in my heel and find it difficult to walk and stand longer period. Symptoms varies with temperature as well. Nerve Conduction Studies : motor ans sensory nerve conduction studies are normal, other than absence of H reflexes bilaterally. I do have voice problem and droopy eye with blurred / double vision issues. Generalasied muscle fatigue, hypothyrodism, vitiligo. Anyone has any idea about H reflex issues