Lopsided chick

[Jekka]

I bought 6 americana chicks. One of them seems to have splay leg and chronic pasty butt. I have made a hobble for the leg and check on her frequently for the pasty but. But I have noticed her vent is off center it seems to be because one side of her abdomen is swollen. Has anyone else had this problem? She seems to be weak and won't eat she does drink and I have been giving her sugar water. She tries to hop around with the hobble but eventually gives up and lays down with her legs behind her. I just don't know if she will live and don't want her to suffer