Is she walking around without limping or curled under toes? Can you check her vent to make sure there are no maggots around her vent, and look for any lice or mites under her belly? Can you try to get her eating some scrambled egg, tuna, and wet chicken feed? Offer water first and get her drinking. Poultry NutriDrench or vitamins with electrolytes might help as well. How long since she laid eggs? What does her crop feel like—flat and empty, full, hard, or puffy? Can you post a picture of her eyes?