I’ve noticed that if I’m out with my dog on a hot day and he’s running hard he will most of the time end up stopping and having a case of diarrhea. He’s usually slobbering and panting hard for a good while even after I give him water. It’s like he’s so hyper that he runs until he physically can’t handle anymore. It’ll go on for about 30 minutes until he finally cools down in the shade. Is this normal?