I know it isn't a seizure, I have had a dog that had seizures. The past couple days we have had some bad storms that really scared my dog. She would tremble like she was cold during them. Well tonight there is no storm and she is doing it again. Could she just be nervous from the past two days of constant storming? I am usually good with symptoms in dogs but this is one I cant figure out. Looks like a call to the vet in the AM but trying to get ideas tonight