I got four new chicks the other day from my local feed store. They are all doing fine except this afternoon I noticed that my Russian Orloff chick is very lethargic and just standing there with her head hanging and her eyes closed. Her butt also looks a little wet like she has diarrhea. The feed store is closed today, and I don't know what to do for her. They have fresh water, chick starter, and a heat lamp, but is there something I can give her or that I should be doing for her so she doesn't die?