Its probably having a seizure
Shaking can be a sign of several problems in a dog: fever, pain, anxiety, low blood glucose, or neurologic problems. If your dog isn't acting right you should take him to your vet. Having cold ears doesn't necessarily mean anything in particular.
You might know that your dog is sick if he stops acting like himself or acting normal. Symptoms may include vomiting, shaking, refusal of food and water, or even fatigue or listlessness.
tell a vetenarian immediatly and he should be able to address the problem
It means you should take your dog to be checked out by a Veterinarian immediately if your dog is acting ill.
A shaking and retreating dog could be frightened or in pain.
Sniffing.
It is called shaking or drying off!
offer it water and take it to the vet!!
Asta was an acting dog (whose real name was Skippy) that appeared in a bunch of older movies. The acting dog was the breed known as a "wire fox terrier".
A Briard.
He is probably just tired just let him rest and give him water. Or it could be the results of your dog having cardiac arrest ( the shaking )
He is cold, possibly?!?!?