My chicken is lethargic and has diarrhea. She’s about 3 years old a white w red crop I don’t know the exact breed. She drank water this morning but she’s not eating. Her poop is watery with some white/yellowish parts. I found her with ants on her backside. Separated her from the other chickens in a pen on the patio away from the sun. We washed her backside with warm water. This started yesterday, I’m not sure when the last time she ate, maybe yesterday afternoon. We live in Katy, TX so I thought maybe it was the heat recently but idk for sure. They have free range of a chicken run and a coop for 6. They eat Thomas Moore layer pellets and have 1 treat of mealworms in the morning. We use hay inside their coop. The coop gets cleaned about twice a week. We started with 4 chicks but one of them got taken last year by something so we’re down to the 3 shown in pics. Is there anything I can do to help her? I do not intent to take her to a vet since we don’t really have the money right now.