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Tension or Temperature. Dogs may shake as a way of relieving tension. If a dog is feeling nervous or uncomfortable in a situation, it might shake the whole body as a way of shaking out tension. This behavior also may function as a means of getting attention from other dogs or people.
If chronic anxiety is a problem, certain training methods might help dogs overcome their fears or acclimate to situations. Your vet might also recommend medication like clomicalm. 3. White dog shaker syndrome. A serious illness might also cause your dog to shake or tremble. These movements are very different from the happy shakes and can usually be ruled out as anxiety-related since theyâre not a reaction to specific stressors.