Hi all, any ideas what may be causing my GSD to yelp when he jumps down off the bed? He is 4 1/2 and just started doing this last weekend. It's not a loud, horrible yelp (yet). I have checked his paws, shoulders, back and cant find any sensitivity spots. Just had him at the vet for vaccines earlier this week and vet said same thing. I cant tell for sure but seems to be when he plants his front left paw/leg. He plays and runs without any issues. It's just jumping from the bed that this happens. Any suggestions before I start with expensive xrays? I thought maybe joint related, any concerns and or suggestions on supplements to give him? Thanks!