I would want to know the truth, so I'll let you know what my doctor told me. While trying to determine which disks were causing some of my symptoms prior to surgery the doctor had me go through some tests that numbed certain nerves between specific disks -this was uncomfortable, but not unbearable. He said to be more specific he could do a distogram, but he didn't want to put me though it as it was pretty bad. I would ask your doctor is there is an alternative procedure to give him the information he needs.