I have a 7 1/2 year old hen who has become lethargic, does not want to eat or drink and has clear droppings with slightly yellow urates. She was acting completely normal until two days ago. She also is in the middle of a molt, which is early but this is commonly when she molts. All other hens in the flock are very healthy. We have had two weeks of very hot weather so could this be heat stress? I put ice in their waterers, have a fan in the run, and make sure they are in shade in the afternoon, plus cold watermelon in the late afternoon. Could she have a kidney problem? I have been syringing Smart Water into her beak and I have an antibiotic and anti inflammatory meds available but am not sure what or if to give them. My vet is on vacation for three weeks. Plus with the Covid situation it is difficult to get in. Please help!