If your dog is demonstrating pain. We need to assess the dog's behaviour to see how much pain the dog is in and what to do.
If your dog's demeanor is happily eating, drinking, sitting, lying down, getting up, walking, running, content and bounding about, tail wagging, its obvious to you there is no pain or discomfort.
Your dog will show signs of being less active, may still eat and drink but without his usual zest. Less tail wagging and
may be slow getting up and slow to walk. May show signs of discomforted being touched.
Your dog will not be interested in food, your dog will seem depressed, may tremble(shaking) Hanging head, tucked abdomen, may whimper needs veterinary care. Refuses to move, body may be hunched and tense. Could be aggressive protective of body.
Restless, very vocal or too quiet, shaking refuses food and water, extremely depressed, may urinate, defecate, vomit without getting up. Uninterested in surrounding, tense and rigid body,Needs veterinary care.