I have had a hen isolated on my porch with her chicks for a month now. This morning she was fine, but when I came home 7 hours later there was a noticeable difference in how she was acting. She is constantly wheezing and sneezing. She stretches her neck out and constantly has her mouth open. You can tell she's really struggling but I'm not sure what to do. It came on so fast. Any ideas or help please?