Back Pain Question

I have had 2 back surgeries, both fusions. My last fusion in 2002 fused L4-L5-S1 this was performed by an anterior approaching utilizing spinal cages. This surgery did relieve the majority of the nueropathy in my legs but did very little for back pain. Over the last six months my pain has increased substantially, I now take morphine 15mg 3 times a day, hydrocodone 10/500 as needed, Roabaxin 1500mg 3 times a day, naproxen 500 mg 2 a day, and some anti-depressants. My last x-rays show Apohyseal Joint Sclerosis L3-S1 inclusive. I know that this means hardening of the facet joints. The doctor said basically that my back is fusing together from the scar tissue build up that is calcifying and that unless I start taking it easy that the scar tissue can compress the nerve roots to the point of paralysis. He also stated that if the scar tissue was removed that it would just grow back, possibly more aggressively. Also a point of curiosity is that an MRI performed in Mar 05 stated I had Degenerative Facet disease distally, but made no mention of scar tissue. I am at the point now where my reflexes are compromised, loss of strength, as well as constant burning in the lower extremities. What should I do now?