Thanks again everyone. Baker slept through the night and seems much better this morning. He had a small, soft poop, but not as watery as yesterday. He also ate most of his breakfast. He took a little nap, no more poo yet & he is playing with almost his normal excitement!
I'm going to give him some more Pedialite even though he is drinking some water on his own. He is too tiny to exist on the small amount of food he has had - in my opinion.