Laura
I also think you need a second opinion or at the very least ask them why you cannot exercise. Just saying no exercise puts fear into your head. AS patients are usually told to use it or lose it - you fuse when you do not move and exercise. It is important to respect your medical professionals advice -but not blindly and with only faith. I hesitate to suggest it could be incorrect but some Dr's and Rheumys can also be out of date. You need more information and to know what and why.
all the best
Kylie
