Range of Symptoms That I Can't Figure Out

[hendaddy094]

Did you get a chance to look in her beak? [Sorry if you mentioned that and I missed it]

I didn't find anything that looked unusual and my mom said the vets didn't think there was anything unusual with her beak. When I tried however, she pooped at me I think out of anger haha. I managed to take a picture of it. It also smells like sulfur/rotten eggs if that makes a difference.

 

[hendaddy094]

Also when I try mess with her front like feeling around she always rears back like a t rex. Don't know if that's normal behavior but she seems to be rearing back and maybe a little bit uncoordinated. Her left eye is going a little bit lazy but it looks like any swollen eye would.

 

[hendaddy094]

Update: She stands up but only for like 30 seconds to 2 minutes at a time. I think she's just too weak. If anyone can put these symptoms together please help me out.

 

[orrpeople]

Update: She stands up but only for like 30 seconds to 2 minutes at a time. I think she's just too weak. If anyone can put these symptoms together please help me out.

Have you been able to up her protein and vitamin level? This absolutely will help her - even if you have to open her beak and put it in.
As @rebrascora said, she does appear to be manifesting Marek's symptoms (which range very widely from the classic paralysis to crop issues, balance issues, and really anything cancer associated - because it is lymphoma). Vaccination is only about 90% effective, depending on whether it was administered correctly with the proper quarantine time after hatch. The vaccine also doesn't prevent a bird from acquiring the virus, it just usually prevents the lesions that kill the bird.
With serious supportive care, birds can rally, and even function normally for extended periods of time. But it is very important to begin with protein and vitamins.

 

[hendaddy094]

Update: She's standing up and walking around. Just got home haven't seen if she's been eating or not though. She sounds louder now too I'm not sure what this means.

 

[Wyorp Rock]

I'm sorry she is not doing well. In the video she is having a hard time breathing.

When was the last time she laid an egg?
Does she have any swelling/bloat or feeling of fluid in the abdomen?
Is she crop emptying completely overnight?

You mention the poops smells like sulfur/rotten eggs - the color of it reminds me of egg too. She may have an infection - if the vet can see her again, that is best, but I'm inclined to think that your hen is suffering from reproductive/internal laying disorder like Egg Yolk Peritonitis, cancer, tumors, Ascites or Salpingitis. Symptoms include weight loss, swollen abdomen that may be filled with fluid, loose droppings that look like egg, difficulty walking (lameness), lethargy, slow crop and difficulty breathing.

If the abdomen has fluid build up, sometimes draining it can make them more comfortable and it makes breathing easier, but this is a short term fix. Antibiotics can also help as a form of supportive care.

Do what you can to keep her hydrated and let us know how she is.