[harleyyorkie]

Hi, I wouldn't worry if he's ok now. My lttle guy was @ 4 months old and playing with his much bigger brother when he let out a yelp and was guarding his back leg. I picked him up checked everything, massaged the leg for a minute and he went back to playing. Nothing ever did come of it. Could of been his knee out of place briefly. Two of my three sometimes develop of a "hitch" in thier get-a-long and they will stretch thier hind legs out in back and drag them a few inches, and it puts them back in place.