Mr. Blue, ?? yr old RIR hen (don't ask, daughter named her) has had diarrhea for a bit over a week. No weight loss, eating and drinking, still laying. She has slowed down from laying every day to every 2-3 days, but all of my hens have in this heat. Worming? If so, recommended meds? I'm not sure of her age, I got her last year free from a woman who was moving away. Her sister is still laying strong.