Spooked GSD all of a sudden
Our 15 month old GSD has suddenly started acting strange. He does not want to go outside - he quickly does his business and runs back in. He has always loved the yard and fence plays with the other surrounding dogs. He keeps sniffing the air like there is something going on. We have asked our neighbors and they say they haven't used any chemicals. Any suggestions and/or help is greatly appreciated. Thank you!