Hi there, We have 2 10 day old chicks and one seems to be sleeping WAY more than the other one. She seems to open her eyes only reluctantly when we pick her up and then closes them pretty quickly again. One eye seems to stay closed longer and close quicker than the other one. She's not really running in the brooder anymore, mostly strolling around if she walks at all. She's eating and drinking but not with the same vigor she was before. Pooping okay. Mostly sleeping standing up as close to the heat lamp as she can get. No visible swelling or any other issues. Any thoughts? She's not seeming healthy to me anymore and I'd like to head off whatever it may be before it gets worse. Thanks, 5Leepy!