My poor chick was purchased yesterday, approximately a day or two old. She and the other chicks were fine, drinking well, eating well, etc. Just an hour ago, I found her laying down, stretched out, making a strange peeping noise. I picked her up, noticed some poo stuck to her backside and cleaned her. I applied some Vaseline, and put her back in the brooder. She nearly fell over, like she couldn't hold herself up. She closed her eyes, and hasn't opened them since. I took her out of the brooder, wrapped her loosely in a towel and set her on a heating pad. She started acting like she's choking, or gasping. I started giving her sugar water from a dropper , but she won't open her eyes or stand. She is still breathing, but occasionally opening and closing her mouth. Please help, I don't want to lose this little girl.