My friend has a Westie dog that just turned a year old this month, her name is Sugar. She had been feeding Sugar SD puppy food since they got her, but then a few weeks ago the situation started.
Sugar gets up in the middle of the night and vomits a yellow substance.
They have since switched her to SD lamb and rice formula for adults and found the same problem to still be occurring. She also does not rush to gobble up her food as she usually did. When fed, she will notice her meal, then walk away and eat it later. She is still eating her usual amount, just doesn't get as excited over food as she used to, and still exhibits the strange yellow vomiting in the middle of the night. We would greatly appreciate any ideas anyone would have on what the problem may be.