Is my chicken hen sick?

[Quacking ducks]

An impacted or doughy crop will turn sour.
If you are already detecting a sour smell, then I'd start her on Miconazole or Clotrimazole along with some coconut oil twice a day.
Do provide water during waking hours. I usually do not withhold food during waking hours when treating a crop, but everyone does things a bit differently.

Read this article, it will walk you through treatment. https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/

When was her last egg?

Photos of her poop would be good too.

Friday was the last time she laid in egg. That is unusual for snuggles, She normally lays an egg almost every day.

I can try to get photos but she’s not really going to the bathroom at all, that I saw she may be when two or three times all day yesterday

She is unsteady on her feet and is very sleepy.

 

[Quacking ducks]

I would get some Calcium into her asap to see if she needs to pass an egg. You can give Tums or if you have Calcium Citrate that would be better.

Work on keeping her hydrated.

This is what I have used before…. Will this work? If so can I just put it in her water or do I have to use a syringe?

 

[Quacking ducks]

Yes, you can use that. You would give a direct oral dose at 0.20ml per pound of weight, once daily for a few days.

Here's how to give oral medications
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/

I’m not sure if it’s any good, after looking at the bottle I noticed a floaty in it. It’s been open for a few months in the cabinet. Is it any good?