Hi, I have had my scs for 4 yrs now for L5-S1 injury. The past few months I have experienced mild tingling (stimulation sensation)over my entire body constantly. It may stop for an hour every other day, but is basically constant. I have been to a cardiologist who did all kinds of tests and found nothing and had blood work done and found nothing. Could the scs have malfunctioned in some way causing the tingling everywhere? Please help and thanks in advance.