...sounds like an esophogeal problem....Brynn1508 said:A woman in our rescue had a dog that would do this. Essentially what they found was his flap in the throat that let's food down, did not function properly (I cannot remember the technical name). He then would in turn throw up immediately after eating on a regular basis. The number one remedy this woman found was after her boy would eat she needs to ask for an up (Standing on hind legs, front up on her) That would allow gravity to assist in getting the food past the flap.
Not sure if this is of any help at all this I cannot remember the diagnosis, but something to consider.