My dog had an ear infection so we took her to the vet. At first when we got in the car she was fine. Then my mom turned the car on and started driving. That's when the shaking started. I know its because she's scared. In all her 7 years of living she has probably been in the car 5 times. So she's not used to it. I just wanted to know if anyone elses dog does this. Big or small.