Tremors/shaking dogs - page 1 - pet place, Tremors are rhythmic, to and fro involuntary movements that persist through the waking state. true tremors stop during sleep. there are a variety of causes of tremors. Why dog shivering & vomiting? | ehow, Why is my dog shivering & vomiting?. vomiting in dogs is quite common, and can be caused by many factors. some are easily resolved, but in some cases, vomiting can be. Dog panting, shaking, shivering excessively | dog pants, Dog panting and shaking. most dogs are known to shiver or shake when they are feeling cold or they have gotten wet. however certain small breeds of dogs tend to.