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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.
I don't really have the money to take her to the vet, but would like to know if this is dangerous. By: Erika Raines El Segundo, CA Replied on 04/19/2011 Your dog may be shaking because she has malformed airways, or because she is experiencing some level of tracheal collapse.