I have a about 4 month old chicken. She was recently injured when she left the cage yesterday. We took care of her injuries and she seemed fine for about 3 hours until she went to sleep for the night. This morning she was sleeping and about a hour ago she woke up. I picked her up and placed her on a chair, and she seemed to be sort of standing up sleeping? Its quite worrying me for she is a bit fat for her age. She does have phlegm in her mouth and I hear her Whesing sort of? Please help, i want to save my little one.