im not sure if anything is wrong at all but i have a chick who hasnt layed in over a week, her sister/friend that she came with is laying fine. We dusted both for mites over a week ago & the sister is actually the one laying. I have seen her laying around alot/ sleeping... Once or twice on her side but i read that they will sun themselves. Im not really sure if you can call her lethargic since she does get up & eat & even occasionallly runs after our new chicken. Could she just be chillin out? any advice is appreciated!