There could be a lot of reasons that a dog may not be interested in food and unfortunately, vomiting is a common clinical sign for many different illnesses.

If a dog spends a lot of time outside, we can see a change in appetite with weather changes. For example, we can see a dog eat more in the winter and less in the summer heat. But, as I recall, Biggie is a dog that spends a lot of time inside, so that scenario is probably less likely.

I also remember that Biggie has 2 new puppies that have been hanging around recently, so we always must consider infectious causes, such as bacterial, viral and parasitic conditions. These all have the potential to cause vomiting and anorexia.

Shih Tzus are known to have sensitive stomachs as well, so we must consider conditions that may be irritating the GI tract and ingestion of food that may trigger conditions such as pancreatitis. Truly, any ingestion of abnormal food for any pet can cause vomiting. Foreign material, bones, grass, leaves, twigs, toys can all cause vomiting as well.

Still, another consideration is metabolic disease and other disease affiliated with organs such as the liver, kidneys, gall bladder, pancreas, stomach and small intestine. These diseases can result in a change in behavior, appetite as well as vomiting and diarrhea.

Some of these conditions require full work ups, diagnostic tests, blood work and x-rays to diagnose. Others still may require surgery. The best thing is to have Biggie examined by a vet and consider options from there. In the meantime, I strongly recommend a bland diet of boiled chicken and rice in very small quantities and monitor him for vomiting. We don't want to force him to eat here, but rather offer his stomach something a bit easier to digest and see how he does. Consistency is key to diet and there is no exception with an upset tummy.

Let me know how he is doing and please don't hesitate to call to schedule an appointment. Hiding under the bed and vomiting does NOT sound like he is just being picky with his food.