How old is Bailee?    
Yorkies will vomit for any number of reasons.    
Check her food... smell it... dog food can go rancid or get moldy so check the color and the odor.   
Sometimes dogs can have an overgrowth of bad bacteria in their systems, (shows up on a fecal exam), that will make them sick.   
 Toxins can make them vomit.   
 Viruses can cause vomiting. Usually supportive care is provided and antibiotics to prevent secondary infections until the virus runs it's course.   
Is she pooping normally? If not, she may have eaten something not digestible and could have a blockage. Her tummy may be hard and bloated. An Xray could rule this out.   
 She may be developing an allergy to her food. The easiest way to figure this out is to change her food to a different type of protein and see if it helps. If not, then you vet will have to run some tests.   
 Has she been dewormed? Parasites can also cause vomiting.   
 Pancreatitis can cause vomiting. Has she eaten anything other than her own dog food? Some people food is too rich for the pups and Yorkies have a tendency to develop pancreatitis anyway. Is she painful in her abdomen and/or along her spine just forward of the hips?   
 If none of this helps, and this turns out to be a chronic condition, then a biopsy of her stomach and/or intestines may be done.   
 It won't hurt to put her on a bland diet of chicken and rice... I do this anytime mine get sick, for a few days till they calm down.   
 I would have testing done very soon, you don't want to let this go one for too long without determining the cause.        |