OK our dog has been sick he has been vomiting shaking loss of appetite he is whining and whimpering when touching him and petting him please tell me what could be wrong

Get the dog to a vet ASAP.

Moved to dog, it was posted in the "human" health area

Instead of trying to find the answer on the internet take your dog to someone that can actually run tests and give you a diagnosis instead of a guess. Wrong guess and your pet is a goner.

Vet, now! That's your only option.

If you can't get to a vet right away then go to the store and buy a bottle of pedialyte to keep the dog hydrated. No, it won't save your dogs life but it may by him some time.