i think my chicken is broken?

over the past few weeks, donna hasn’t been able to make it into the nesting boxes with her egg. she’s laid in a box maybe twice all month? i recently moved everyone into a new coop and she’s used those new boxes, and the other two layers are using them just fine. i even left the old coop open to help in case she’s not sure about the new ones.

her shell is super thin lately too. i just switched from layer feed to all flock (added a few new chicks) but she still has access to the oyster shells and is definitely eating them. she also gets most of the shell back when i cook up the eggs that break (most of them, since she’s laying on the roosting bar 🥹).

she’s about a month past a 10 week broody spell, so i was thinking she’s maybe just backed up and out of practice? which would account for the eggs coming around 5am most days? but i would’ve expected her to get back into the routine by now.

i have no idea of her age but is this maybe indicative of her laying cycle coming to an end? anything i can do to help her?