Help please.. I put diatomaceus earth on the pine shavings in my two girls coop and put some in their feed and water yesterday and today they have diarrhea??!! I've also noticed them with their mouths open a lot. Does anyone know what could be the problem?? They're eating fine otherwise. I didn't really put very much of that stuff in their food or water PLUS it said it does not harm them..?? Could it just be a shock to their system at first?? I also gave them about two teaspoons of plain yogurt and a little fresh cooked corn yesterday..could any of those be the problem?? I'm worried cause they never have had any diarrhea before. They're about 16 weeks old now. Thank you.