[Tatiana11]

So I always just thought that Armani was still little and thats why he wouldn go up and down stairs. But yesterday I was talkingt to another yorkie mommy and she said her yorkie is also 6months old and flies up and down stairs. So I dunno if Armani tried one time and fell and wont do it now. I put him on the third step up and bribe him with treats to come down. And he hesitates them comes. He wont jump up and down on the couch. The vet says that his legs are fine. So whats going on??
Does anyone else have this problem?