Just wondering if anyone can help me out with a strange knee issue. When I'm in the bottom position of a deep squat with heavy weight the inside of my knee will occasionally pop a few times, similar to a bubble popping. It's usually 3 or so pops and doesn't make any sound and doesn't hurt right away. I'll be able to get the weight back up. The next day though it gets sore. I think it my have something to do with synovial fluid but I'm not sure. Any help will be much appreciated.