What Causes Pain In Neck, Hip And Knee?

I was told yesterday by my GP after 6 months of chrutches -4 years in pain from neck, shoulder hip, knee and at last ankel and not able to put my foot dewn and walk. After many Mriscan and scintigraphi - I had Sudec's Dystrophy. I go to fysiotraining 3 times a week now -can carefully walk. What more can I do that will make me inprove my body.

( I am 58 years old norwegian 1 meter 70 -64 kilo -always done sport and airoboc -am slim -and desperatly want to be able to ski and dance again and feel as well as possible.