We have a 10 week old Rottweiler. The 2 days he's been moving his head around to shake his ears and pulling at them with his paws. When I rub his ears, he calms down like that soothes him. When looking in his ears, we couldn't see anything. We are taking him to the vet next week for more shots but I don't want to have him suffer anymore. Is there a way to clean his ears or is that a sign of something? Any help would be great - thank you