It is so bright eyed and chipper though right now. Very alert. It doesn't appear to be in pain, just lonely because I have it by itself so it doesn't get trampled. I am sure if I can figure out a way to keep the hip stable, it should be more comfortable for it. It is really hard to tell for sure but I do believe it is the hip and not the knee. At first the knee was really stiff but I have been working it and it does bend more easily now.