I have an Ameracauna hen who suddenly stared acting “off”. Hanging out in the coop and such. I noticed but didn’t see her enough to know something was wrong until I found her laying in the run with her wings kind of hanging. We brought her in and gave her some Tylan 60 and by morning she was much better but still not great. She stared drinking a ton and eating a little but now it’s been 3 days and nothing has changed. If we let her out she just goes to the coop and naps in a nesting box.
Not much energy (could be from lack of food?)
Tail down
Bad diarrhea (could be from all the water)
And I almost think I keep picking up a “sweet” smell but it could be the food in our tiny house.
I’ve been doing Tylan 60 once a day orally.
Can you post some photos of your hen, the poop and her face?I noticed she does have gunk on her nostrils.
You mention she's got gunk in her nostrils, can you look inside her beak to make sure it's clear of any lesions, plagues or canker?
How long have you had her?
Have you added any new birds in the last 30days?
I agree with @Eggcessive check her crop to make sure it's empty in the morning and feel inside the vent to see if you feel an egg.
I would try to keep her hydrated. Once she's drinking well, offer her a little feed with egg.
Keep us posted.