question: My right knee makes a squishy sound when I crouch/squat, but so far with no pain present. I even do weighted squats at the gym and hamstring exercises with no pain issues. My right knee also has slight puffiness from a bursa sac? I had at one point back in September injured my knee playing tennis. I never got it checked out, and it eventually heeled on its own, with me no longer feeling any pain while climbing stairs. Any ideas what the sound could be?