So Ollie just started his puppy training which he did great except for he got an upset stomach from the treats the trainer used to reward him. He had wet runny poop and throw up a little bit. We’ve never given him treats and I’m assuming this happened because it was the first time, the brand was True Chews. Will his stomach eventually get use to this kind of treat and should we let the trainer continue to use them? Or should I try another kind of treat that maybe is better and easier on puppy stomachs? Does anyone know any treats like this?