I have severe low back pain on the lower right side & bulging disc & harrington rods for scoliosis, my curvature was at a 69°.Tingling legs & arms?

Spine. After a fusion arthritis can occur above and below the fused segments of the spine. It sounds like your surgery was many years ago. If you so not have a spine surgeon it would be a good idea to see someone soon to have a look at your back and gets some new x-rays.