I've been impressed by the responses here on the injured room, and I thought I'd ask if anyone has had experience the problem I'm currently afflicted with.

I woke up on Monday to find my left knee was swollen and red. It was sore to extend fully or bend at all. I hadn't exercised at all on Sunday, and I didn't bump into anything.

I've tried resting it for a few days and applying ice and taking ibuprofen. The pain has subsided now, but the swelling hasn't.

My GP sent me for some blood tests, and I'm waiting two weeks for the tests to return. If anyone has any idea of what the problem could be, or how to deal with it while I wait for the test results, I'd love to hear.

Here's a picture. I included my normal, attractive knee in the shot for comparison.