Hi @jesking I'm sorry your chicks are ill.
Can you tell us about your brooder set-up - how much heat they have, what type of food you give, etc.?
How long have you had them?
How many are sick?
Are they pooping - what does it look like?
Getting them hydrated is the first thing to do -...
How is your girl doing?
Any swelling, bloat or feeling of fluid in the abdomen?
Is she pooping - what does is look like?
Her stance reminds me of an egg bound hen. She may also be suffering from an internal laying/reproductive disorder like Peritonitis, Salpingitis, Ascites, cancer or...