puffed up lethargic not eating

[zenstarling]

Hi all, happy Thanksgiving.

My 2 1/2 year old barred rock has started showing signs in the last few days:

less activity
drinking a TON of water
empty/nearly empty crop
not eating much
standing puffed up
poop is mostly clear liquid

I’ve been able to give her yogurt with electrolytes and she was ravenous for it yesterday. Did not see her go for the feed. Today not having as much luck getting her to eat the yogurt.

The peculiar thing about this hen is I don’t believe she’s laid an egg in a year.

She never really molted last year — instead she’s been regrowing patches for the entire last year. When everyone else resumed laying in late winter/spring she never did. But has been healthy and active this whole time.

I’ve checked for mites/lice, nothing. Her abdomen is red and bare with pin feathers poking through, but it doesn’t feel swollen or enlarged. Her crop feels mostly empty.

Any ideas on what to check next? It’s a miserable rainy cold Thanksgiving here and she’s now separated in my garage.

Thank you!

Edit: just now she very happily ate two scrambled eggs.