Peanut within the last couple of weeks has been holding up his right hind leg occasionally. This would happen and then a few minutes later her was ready to run, jump and play as if nothing was wrong. I was worried about patella luxation so took him to vet @ banfield and she did a physical exam and said his knee seemed fine, maybe it was just a strain. After about a week this is still happening about 2-3 times a day. The other day he did this when he hiked his leg to urinate. Is this something I should be concerned about or give him time and see if he heals? He is only 10 mths old and don't want him to be in pain. He does not wimper or anything when this happens. Does this sound like symptoms of patella luxation or maybe hip dysplasia?