All my babies are sick i think

[Lenny loves chickens]

She's only been getting yogurt?

Let her with her flock to spend the day doing chick things, eating and drinking.
When she goes to bed, recheck her crop to see what it feels like, then again first thing before she eats/drinks.

Do you provide grit for your chicks? If you don't, then I highly recommend that you do.

Yes I do I mean she has gotten yogurt and feed plus grit.......instead of making chicken food I mix yogurt and crumble