Take it to the doctor
If you haven't eaten in awhile they could shake. Mine do. Or if your nervous
You have a dog that is shaking, hiding in th dark and won't eat and you are asking on WIKI answers? Geesh, take the dog to the vet for Gods sake.....
it might be the starter. have it checked out.
Inside the alternator
battery is shot?
He could be, or he needs a few days rest and relaxation, with fresh food and water. Hamdoc You could also try the vet if you feel the need to.
Check your starter it may be grounded when hot.
There could be a problem with the relay being grounded. There could also be a bad fuse or the fuse connection.
It could be the starter in it. It may be weak or need replaced.
He needs to see a vet right away.
It could possibly be the timing belt. Chevrolet recommends replacing it every 60,000 miles.
Starter could be bad, neutral safety switch, wiring, engine could be locked up.