My knee is sore around my knee cap (both sides and the bottom, but its worst on the inside). It feels real squishy in some areas, definitely different than the other knee. It isnt visibly swollen, but it FEELS swollen, and the back of my knee hurts when I extend my leg, or press down with a lot of pressure on my heel. About 8-9 years ago, I had a synovial cyst removed from under my knee cap, and had a torn meniscus repaired, but this feels different. Im 32, former athlete, still in decent shape, but not nearly as active as i once was. Any ideas?