I can't even imagine exercising

I tried the glucosamine-chondroitin but did not notice any change but that could just be me.  I have coworkers who say it does help them. I am going to try and walk as much as I am able.  I had a treadmill stress test today and was only able to walk for about ten minutes before the pain became too bad (but they got what they needed because my heart rate went up to the 90% of maximum very quickly).  But it did show me that I might be able to start slowly and walk for 10-15 minutes.  Maybe I can do it twice a day and begin to get mobile again.  Thank you for your feedback.