Not sure if he's constipated, or what. He doesn't want to eat, which is weird for him. His poops are black and kind of hard, I'm assuming he's dehydrated. No pedialyte... He accepted a substitute. I got the recipe here. He's still crawling around and kind of active, but sometimes he lays down and looks really sad. I've been rubbing his belly, and keeping him warm and comfortable. Really worried about him. Any tips?