I have a five year old male chocolate lab. Bless his heart, he is very smart but totally neurotic. He will walk into a room and not turn around to walk out, he backs all the way to the room he just came from. He also will get stuck and not be able to go through a door, sometimes we have to push him through so that he can go outside. Any suggestions? We have asked the vet and he doesn't want to medicate him but he really needs some help.