Ok, so I have a chick, she is probably 2.5 weeks old. I'm not 100%. I bought her on Thursday locally from a lady. The other one I got from her is fine. This one started to act up the next day. They were outside in a brooder with plenty of heat and closed in so no breezes blowing through. A cold front blew in though, so I'm not sure if its related. Anyway, I noticed it was acting strange so I brought them all in the house. She stands around opening her mouth as if she is gasping for air. Her peeping sounds off, it is more faint, and a little drawn out. Not loud and pippy sounding. She doesn't do much. I bought save a chick and put that in the water. No change. So I bought antibiotic. Not sure if she is even old enough for it, but I don't want to lose her, she was NOT CHEAP! Still no change, she has been on the antibiotic since yesterday. I will see her act like she is eating. She scratches around and pecks at the food, but her crop never feels like it has anything in it. She feels like she is getting lighter as well. I really don't want to lose her but I don't know what else to do? Should I do hardboiled eggs? Or poly vi sol? ETA- so I just felt her crop, and it felt like a bubble, so I massaged, it, and air bubbles came out of her mouth. Is she swallowing air?