Broken egg inside my duck! Help pls

[Jessxj1]

I let my ducks out of their coop this morning , went back inside the house then around midday noticed yellow on their wee wee pads ( posting photos). She was fine all morning , midday she starting losing her balance . I panicked starting calling bird veterinary places so I came in , they are saying it isn’t a broken egg even when I show them photos. They want me to leave her for the weekend, they don’t promise anything . They can’t flush anything out it’s not how it works they say . PLEASE HELP I AM DEVESTATED . What do I do ? If I leave her they are just waiting for her to pass …
I am trying to attach photos I can’t figure it out

 

[Jessxj1]

I let my ducks out every morning , they seemed fine . Around 11 am when I went to feed them and notice she was not walking straight , as in couldn’t balance herself . I brought her in the house but didn’t notice anything wrong. As I’m cleaning the coop I notice what you see in the photos. It seems to me like a broken shell pieces & yolk, not sure if the there is left remainder shell broken inside of her .I have immediately called an emergency bird vet, brought her in . They took x rays but nothing they don’t see anything shattered inside of her .
They also said even if it was was anything inside she was going to pass it ?
Pls help what should I do to help her .
I’m sorry if I didn’t make any sense , I am inside my car a mess outside the vet place as I made this account and posting this .
Thank you in advanced .

 

[Jessxj1]

Here are the photos , I thought I posted them . I am new here , trying to figure everything out .

 

[casportpony]

Welcome to BYC. Did the vet give her any medications?