No problems with this chicken at all until 3:30 when she all a sudden started wheezing. She seems better now I have probiotics in her water and gave some VetRx. Her wheezing has let up a lot and her clucking doesn't sound as raspy. I didn't want to just throw antibiotics at her if she didn't really need them. I wasn't sure if maybe she had a sour crop or some crumble that got stuck. I was told its respiratory disease. I can't say it's not but I find it hard to believe. They did eat a head of cabbage today which was the first time they have had it that way. Last time it was cooked leftovers.She is still active as well as eating and drinking. None of my other birds have any problems. What should I do?!