I t is hard to watch your dog shake and flatten its ears because of pain. You will want to help, and since aspirin works ...
Just like people, dogs can feel pain. It could be that your dog is aging and having joint pain. Maybe your dog had surgery recently and is still recovering. Your dog might have a wound somewhere ...
First, if Gray is overweight, help him lose the excess weight. If you’re uncertain about his weight, ask your veterinarian.