The vet and us believe that Lily has acid reflex after her episode a couple of months ago where she couldn't hold done any food, water, rice, or broiled chicken for 4 days and Pepcid AC did the trick. The food at that time was Praire and she had been completely switched over on it for a week before she got really sick so we know not to go with that brand with her again. She is now currently on Natural Balance Duck and Potato but is having an issue with soft stools. We are now thinking about switching her to Merrik Wilderness Blend (She thought the sample was awesome) but didn't know if anyone else out there had any problems like this and had suggestions. She did throw up the Wilderness Blend sample a couple of hours later but she was also really worked up and stressed from playing with my dad's German Shepard that is a hard and aggressive player.