Can I throw a medical question out there for those with arthritic knees who don't mind answering. It can be a simple yes or no answer, no medical details are needed.When they are bad, have you ever had a funny kind of pinging/snapping/flicking sensation inside rather than just constant pain? It's like someone draws back a big elastic band and lets it go inside just for a split second then it's ok again? It only happens under stress, eg walking.The dr told me it was arthritis, but it doesn't sound like it to me, compared to those I know with it, but I've not really spoken to enough people with it to be sure, however I thought arthritis hurt all the time during bad stints. For me it's only ever bad when I do a lot of cleaning, stairs, fast walking etc. The temperature and humidity doesn't seem to make any difference to me which I thought was typical arthritic conditions.I'm going back today and wanted to follow up on it and it would be nice to have some information to go with if she was wrong.Thank you.