My puppy is vomiting foamy saliva and shivers whenever she sees her food. what's wrong with her? :(

Hello there. my puppy has been vomiting foamy saliva since morning. every time she saw or sniff her food, she suddenly shivers and plenty of foamy saliva are drooling out of her mouth. she's still playing with us and she's not weak. it's just that after she shivers and vomits, she then goes wild and barked a lot, while in fact, when she's normal, she just stay silent in one corner.

i tried to give her a bottle of cold water so that she'll play with it and I also gave her a water with ice cubes in it, because she might have been suffering from heat stroke. but i'm just not sure. the shivering and vomiting repeats every after 30 minutes. what does that mean? please help. asap. :( I don't want her to die. :3

Take her to the Vet ASAP. Those are symptoms of Canine Parvo Virus.

More:
http://pets.webmd.com/dogs/parvovirus-in-dogs

Vomiting is very common in dogs. The throwing up would be due to a variety of causes most of which should not be made a major concern. A vomiting dog would have strong abdominal contractions and heave forcibly to expulse the contents of the stomach and the small intestines. Although vomiting is a common occurrence in dogs, this concern is a challenge not only to dog owners but to veterinarians as well given that vomiting is not considered to be a disease but rather a symptom of an underlying ailment.

•What to do if your dog is throwing up or vomiting
A dog owner would seldom say that he/she has never seen the pet vomiting. Vomiting is very common in dogs. Dogs have the uncanny ability to know what is wrong with their system. Dogs also have the ability to heal themselves.
Other causes of vomiting
other causes of vomiting
A bout of vomiting can arise if the dog is suffering from gastrointestinal problems. The dog may have stomach ulcers or cancer. The pet can be infected with parvovirus or infested with intestinal parasites. Vomiting can be a sign of an underlying disease. Pancreatitis, Hepatitis and kidney failure are some of the diseases that would have vomiting as a secondary cause. Deficiencies or excesses of hormones as well as infection of the abdominal cavity can be one of the reasons why a dog would have recurring bouts of vomiting.

Managing the vomiting pet
A dog that repeatedly vomits can get rapidly dehydrated. Vomiting can also result to aspiration pneumonia. The dog may develop electrolyte imbalance as well. Needless to say, it would be imperative to stop the bouts of vomiting. It would be necessary to know the causes why a dog is throwing up. A dog that vomits once or twice but acts its normal energetic self may not need medical treatment. Dogs really do induce vomiting by eating grasses to expulse substances they have ingested that do not agree with their stomach. A severe case of vomiting however would need a veterinarian’s attention. Take the pet to the vet if the dog is in obvious pain and the vomitus that is expulsed forcefully has blood in it. Immediate medical attention in this case can save the life of the pet

TAKE HER TO A VET!!!! It's a SEIZURE!