I know there is probably no cure for her but i Personally want to know what may be wrong with one of our hens. One of our hens is a Leghorn and we will see her and she will walk like she has to lay an egg but then the next time she wont be like that Is she possibly laying eggs internally? If so can her body like absorb them?
this may help you decide what is best for your hen, I wish i could offer you a cure but if it's internal laying there isn't much hope. I am so sorry. and i wish it was under better circumstances but https://www.backyardchickens.com/forum/viewtopic.php?id=79443
Today the hen was super bad. She could hardly walk and was all hunched up like she had no neck. My husband put her down for me and we buried her. She was pitiful. I do believe she was laying internally. I also believe that our other leghorn may be on the same path. poor girls. At one time, their eggs placed first at the fair. This was the second time that we had to put down a sick bird.. but this time wasn't near as sad as this chicken wasn't a baby like the first one.