Need some advice- one of my boys (6.5 yr old Ares) has been reluctant to use the stairs, go on walks more than 5 minutes, and is walking differently than normal... I know hip dysplasia is not common for this breed, but I want to have him checked, as this is not normal for him... been going on about a week... I usually take him on the Air Force base to have shots ect. but they don't have a big facility and don't really specialize in Greys... Suggestions on where I should take him? Thanks!