One of my 5 week old golden polish chicks has been subdued the last day or two. She has started spending more time than not just laying down and is not perky anymore. All of my other chicks are doing fine as of now. Could this be the beginning of coccidiosis? My chicks are not on medicated feed because I can't find a feed store within driving distance that sells medicated starter in any quantity greater than 5lbs. Therefore, I'm worried that this is coccidiosis. Do I need to treat the whole flock for coccidiosis just in case that is the problem? I know there are other things that could be causing the polish chick to be sick but I'm thinking that coccidiosis is the most likely??? Should I play it safe and treat them for coccidiosis just in case? If yes, what do I treat them with??? I'm a first time chicken owner and am very worried that all my chicks will get sick and die. All help will be greatly appreciated. Thanks!