|Barked: Fri May 13, '11 11:53am PST |
|If the vet can't find any cause for it, could it be behavior that he learned? When we were in puppy class with Daisy years ago, the trainer there told us about a woman who had a dog that was constantly vomiting for no reason whatsoever. The vet couldn't find anything and said it had to be a training issue. She was skeptical but took the dog to our trainer. They eventually discovered that when the dog was a puppy, she would overeat and vomit up what she couldn't hold and the woman would pick her up and love on her a little bit, like someone would with a child. Well, the dog associated this with positive reinforcment and thought she was being rewarded for vomiting...so she taught herself how to do it. I don't know what the trainer did to help her fix it, but she did tell us that it could often be difficult to correct an unintentional behavior like that once the dog has learned it.
This probably doesn't help but just wanted to throw the story out there. Do you think he might be picking up some loose fur then gagging on it?
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