[Sundae]

Interested to hear the answer. My knees pop & click on the stairs, although it is mostly downstairs for me. And yes I had a colleague who was disgusted by it and would only walk with me if there was loud conversation.

I used to find that if I tried to run from walking or standing I would get a blinding pain in one or both knees. I still get it now but I run less... On cold mornings I can get it if I just start to walk a little faster, like to hurry across a road.

I went to see my doctor when I was about 17 and he suggested it was something to do with not warming up properly. I couldn't get him to understand that I wasn't trying to start jogging - I was just running for a bus, and no-one else around me pulled up short with a gasp of pain.

I was much MUCH smaller and fitter then. But my knees are about the same now.