I own a Schnoodle, 27 lbs. I am looking for a sister, (Yorkie) for him. He is 4 yrs old and has had the vomiting thing since he was a little guy. I feed him 5 to 6 times (small meals) a day of canned food and he always has dry food available. He only vomits once in a great while,
or if he eats something (like bird seed) that he should not eat. My vet said he has seen this in the small breeds, when their tummies are empty. He told me that I was doing the right thing. Hope this helps.