I would keep trying to get her some food or even some water. Maybe can put some electrolytes in the water?? I’m just guessing since I’ve never dealt with anything close to that but I would think getting anything in her to help boost her energy is worth a shot. If it were me I’d feel better losing a chick knowing I tried all I couldI think I am losing one of my chicks, she has failed to thrive despite me showing her the food and water multiple times. She seems to be always cold. I have the brooder plate (Brinsea Ecoglow) set low at one end for the little chicks and high at the other end for the 3 week olds, I’ve shown her the warm end several times because she was very noisy. I found her flat out on the ground at the high end, stone cold. I thought she was already gone but she peeped softly so I popped her inside my top, against my skin which I assume she likes because she makes a lot of noise if I move. She’s a lot smaller than all the other chicks, even the ones who hatched at the same time. But she won't eat or drink so I’m just holding her close, keeping her warm and expecting she will pass soon.