Help, help, help pleeeeease help my babys sick

[Naturegirl37658]

I dont know what to do! Is she sick or in shock!?!?!? I have a Serama hen who has been fine for months and laying eggs. Shes always eaten well but now shes just sitting with her head down and dont want to move. I dont know what to do! Shes just lethargic! I had to take her rooster away from her recently but it was only temporary. She started this behavior as soon as the rooster came back. Is she sick or in shock!?!?!?

 

[nchls school]

Posting a picture would be helpful; also any other symptoms. Diarhea-watery eyes-weight loss-how long she has been ill-type of feed-other birds-housing??