Why Is My Dog Shivering & Vomiting?
Shivering can also be an indication that your dog is anxious or frightened. A dog's fears usually result from an existing object, situation, or person that presents as a threat, whereas anxiety results from the anticipation of possible future dangers. Removing the perceived threat can help your dog relax, and reassuring your dog and helping manage his behavior can help with anxiety.
Dogs can vomit for a variety of reasons, including eating too much or too fast, or ingesting something that doesn't agree with them. It doesn't necessarily mean a trip to the vet, but you should keep close attention and make sure that the vomit isn't foul-smelling or has a conspicuously strange color.
Shivering & Vomiting Together Can Mean Potential Poisoning
Whenever shivering and vomiting appear together, you must seek immediate veterinary care as it may indicate that your dog has eaten something poisonous. If it is feasible to do so, check the area in which your dog spends time to see if you can determine any obvious signs of poisoning, such as a displaced trashcan or remnants of what they have eaten.
The Canine Journal recommends to watch for multiple symptoms of poisoning: in addition to vomiting and shivering, your dog may experience diarrhea, loss of appetite, or blood in the stool. Many common substances, including chocolate, cigarettes, and sugar-free gum, can be very toxic to dogs. Bring anything you suspect your dog ate with you to the vet. Snail baits are particularly toxic, and they cause muscle tremors and shaking in dogs.
Kidney Disease and Distemper
Unfortunately, kidney disease often fails to produce symptoms until it is at an advanced stage. It is important to observe your dog vigilantly for warning signs, such as unquenchable thirst and frequent urination. While it does not always cause vomiting, canine distemper also can cause dogs to shake violently. Because most older dogs already have been vaccinated against distemper, it is most likely to afflict dogs between dogs under one year old.
While shivering and vomiting alone are symptoms of minor issues, if they ever occur together you should immediately seek veterinary assistance in case of poisoning or the possible symptoms of kidney disease.