If it is LP, the kneecap comes out of place especially during walking or running. He would still be able to scratch just fine. It shouldn't cause inappetence unless there is a fair amount of pain and that doesn't cound like an issue here. It may also be his hip. It's best just to get it checked out if he is carrying it.
How many times has it happened and did it have anything to do with the time that salt or ice melt was put down for the winter? Ellie carries her legs occasionally when she has to walk on salt. Evidently it burns...
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |