I Studied at Pima Medical Institute for two years and received my Associates degree in Veterinary Technician. I've worked at two major animal hospitals in San Diego VCA and AEAH. I know the signs of abnormal behavior including types of stool, types of abnormal breathing, and loosing weight. If there are any concerns, The first thing I would do is let the owner know. I will treat your dog like if she/he was my own.