Hello, First of all let me explain you that a given medical symptom like yours could be due to various causes. Back pain and current like sensation could be due to spondylosis in the cervical spinal cord, or other causes (any tumor, demyelination, spinal cord problem) can cause similar symptoms. In old age this could be due to spondylosis. You need a detailed neurological examination in order to determine the exact neurological problem. The presence of current like sensation is a point of concern as it suggests that one structure in the spinal cord is being compressed. Hence an urgent neurological evaluation will be required followed later by a repeat imaging and nerve conduction study (may be optional depending upon the early evaluation). Your treatment will largely depend upon the cause. Hope this explanation will help you. Best wishes