Hello, I noticed 2 days ago my left knee was making the sound of something like crinkling paper and sounds like it has some fluid in it when I bend in or climb the stairs and now today my right knee is making the same sound! It's not terribly painful or anything - yet . I was just wodering if I should call my doctor about this on Monday. I take 150mg aza and 9mg Entocort. I also just finished a month of prednisone. Any advice ?