 [ Symptoms ] electric type shock in buttocks rectum down leg doctor do not know cause [ Disease ] hi u mentioned about the throbbing pain in rectum buttocks going right down the leg this usually happens due to a nerve compression in the lumbar spine and in cases of coccygodynia get an mri of the lower back done u can consult a good physician for other general symptoms majority of the important tests have been done and i dont see any reason for you to be worried thanks