I don't know the exact nature of your problem, but until three years ago, I couldn't walk downhill or go down stairs; my knee would start hurting immediately. When I started hiking, the muscles around my knee grew stronger, and the pain subsided. At first, I always took the cable car down the mountain. Nowadays, I actually enjoy the descent on foot more than the hike up. It seems that what conventional medicine tells us isn't always right.

I wish you all the best and hope the problems don't return.