That’s how one of my RIR pullets died! I wrote an article about it, you should check it out. Has necropsy results as wellInexperience.
I discovered the local pet shop stocked dried meal worms and offered them to the hens. They looooved them and I gave way too many for about a month, with cheese sometimes too.
Peggy is the littlest and she got very sick. First Mark the vet thought it was her pancreas, so we put her on special enzymes. No real improvement. So he x-rayed her and it showed something inside her was enlarged and pushing her intestines out of place. So he opened her up to take a look and found hepatic lipidosis. Closed her up again and prescribed a strict healthy diet, which I've stuck to for about a year or so. She's doing great these days. I take her back for a check up every three months and Mark says she's thriving now.
Mealworms are a rare treat now, and I got them switched over to cottage cheese too (oddly, cheese was one of the ingredients in the strict diet).