Kristine,
Hi, I am 38 with mild CP (hemiplegia). I had very few problems as a child and had my achilles tendon lengthened when I was 17. My problems started a year ago with lower back pain, and a decreased range of motion. I went to PT and there they discovered that I was also dropping my foot a lot and leg getting stiff.
I now wear a leg brace to help with that and I get botox shots in lower leg. The botox gives mixed results for me but the brace really has helped with my gait, the dropped foot and I am able to stay up on it longer with the brace. This summer I went to the Rockies and did some climbing and biking and had a good time. I am not a doctor, but your situations sounds verry very much like mine. I am being told that it is age related and the body is having a harder time with the compensation mechanism. I have a whole regiment of stretches that I do now and I go to the gym twice a week to keep the range of motion from getting worse. I still get episodes of pain, tightness and fatigue that I wish someone would help me with so tomorrow I am trying a massage therapist to see if they can push back the pain levels.
It probably wouldn't hurt to foolow up with your doctors on this especially since there is MS involovement as well. Good luck Kristine and keep me posted on how everything goes for you. There actually are quite a few of us all in the same age range with similar issues on this healthboard so you are not alone. Welcome aboard!
Hang in there,
Lastramy