Hi I just got two baby chicks about a month ago and I don't know exactly how old they are but I have kept them together and one of them has started wheezing. And just tonight she has started just randomly opening her mouth wide but not making a sound like she is choking on something. Is this a problem? She otherwise is acting fine her eyes look good, there is no blood in her poop, she is eating and drinking normally, and is being active. Could it be just simply something irritating her senses? Or is it some disease?