Can someone help me figure out what’s wrong with my chicken?

[Eggcessive]

There was no signs that I saw but what is the curling under the toes? Can you put a picture so I can see?

In post 2 of this thread below, there is a picture of curled under toes:
https://www.backyardchickens.com/threads/lame-leg-curled-toes.874051/

 

[erinrstrain]

I just bought my newest chickens Raven & Oreo both seramas, not sure of their ages but I’m worried that Oreo may have Merriks or something else. She has droopy wings, she’s loosing her balance, if I pick her up then put her back down she will just sit or lay down, and she can’t balance on my smaller roost(but all of the others can.) Does this sound like anything familiar pictures if needed

Don't have anything to add because I'm on here questioning Marek's, too. Just solidarity. Hope your girl pulls through.