Greg,
I could easily be wrong, but it seems to me that after ADR surgery and rehab your doctor should have not have lifted all restrictions and should have told you to go very easy on your spine for many months at least due to other discs issues.
Tragically your issues may be too severe but some people manage to improve with time and care. Sometimes rest and then rehab possibly helps. These are recent links that i kept as I have torn and bulging lumbar and thoracic discs, though still do not know whether i will avoid surgery. Personally i remain loathe to consider thoracic surgery despite the pain because it is major, risky and fusion i think has only about 50% patient satisfaction. plus it can accelerate deterioration in any compromised adjoining discs.
having the best doctor you can find is essential regardless.
Thoracic Spine Pain: Case study Sally’s confused spine | Sports Injury Bulletin
Functional Restoration for a Chronic Lumbar Disk Extrusion With Associated Radiculopathy -- Hahne and Ford 86 (12): 1668 -- Physical Therapy