she is eating her bedding
Consuming it or chewing it?
If she is actually swallowing it, this is very bad and can lead to crop impaction. And will need a vet to remove the material.
I would remove it. She sounds hormonal, so remove anything shreddable. Offer her some more (non shreddable) foraging opportunities, maybe a new toy if you have something on hand - a jingle toy or something with a bell.
I have Aldoras cage with no shreddables at the moment as she is a bit hormonal and would shred cotton perches, shreddable toys and have a nest built on the floor within hours. Her only perches at the moment are wooden and the pedi perch, plus the bead boing that i have fixed like a perch. (you can see it a bit in the
video I posted yesterday about her new foraging toy)
Removing everything and having only food/water and no toys/foraging won´t help as it will induce boredom.
Is there anything you can suggest? I've replaced her pellets with seed and fresh greens.
Offer the pelelts too if that´s what she normally eats. Have all three available and watch her from a distance without staring. It may be possible she is eating in secret?
Have you weighed her? I would recommend that. If there´s no weight loss I wouldn´t panic just yet, but if she is losing weight, try feeding her baby bird formula until you can get to the vet.