Lethargic, 1 yr old puffed up hen, clear liquid from mouth

[Lisa-Lu]

One of our wyandottes suddenly separated herself from the rest of the flock, she stood by the water all evening yesterday and didn't move. When I went to pick her up she didn't startle or anything. She did go into the coop last night, but didnt roost. She slowly walked to a nesting box and bedded down. This morning, she came out and resumed her stance beside the water.
I have since separated her, treated with Corid water and just watching to see what happens. When I picked her up a bit ago, I was feeling her crop and clear liquid like water poured out of her mouth, a lot of it. I don't see any lice or mice, or anything wrong on her body.
I've read all sorts of issues from crop to fatal things. Her crop is soft and empty. Any advice would be appreciated.

 

[Wyorp Rock]

Is she laying eggs?
It would be good to treat her for crop issues. Do keep in mind that often a crop problem is a symptom of an underlying condition.
https://www.backyardchickens.com/ar...ntion-and-treatments-of-crop-disorders.67194/

 

[Lisa-Lu]

I do not know if she is laying but will know soon since I’ve quarantined her. She is eating some scrambled egg now so I’m considering that as a good sign.