[mygirllacey]

Sunday evening, I gave Pepper Jack his first heart worm medication. I gave him the Sentinel Heart worm/Flea Control pill as recommended by my Vet. Vet said he was too little for the topical that I give Lacey. Yesterday morning, he had very soft stools, but not liquid. I fed him his usual RC Yorkshire Terrier puppy food, put him in his playpen and left for work. When I got home he had vomited up his breakfast. I got him out of the playpen to clean it up and he was playing with his toys and seemed fine. Then he ran to his puppy pad and had diarrhea. He vomited a little bile right after that and laid down and went to sleep. About 5 hours later he was up and playing and begging for food. I gave him some chicken breast. He kept that down. I gave him a small amount of chicken breast again about 3 hours later. He kept that down all night and woke up this morning running and playing with Lacey as normal. He is drinking plenty of water and I also gave him a dab of NutraCal last night and this morning. For breakfast, more chicken breast which he has kept down for an hour so far. I'm scared to feed him anything else as I don't know what triggered this.

Could it be the Sentinel? Other than that, he had a few Nature's Variety freeze dried treats before bedtime, but he's had those before. He's been eating the Royal Canin for 5 weeks now, so surely it's not that.