I have had a CT scan and the results are. At L4/5 there is minor annulus laxity but no significant sized disc extrusion and no evidence of nerve root compression at foremen or lateral level. At L5/S1 there is very large disc extrusion compression the thermal sac centrally and right paracentrally and the origin of the right S1 nerve root (and probably S2). Iam in pain 24/7 have been given all sorts of pain relief but it only helps alittle. Doctor has just put me on Lyrica 75mg can have one tablet twice a day. Has anyone else use this cos it doesn't seem to be doing anything to help.