how long can a three toed box go without eating?

It's been over 2 months..Left still wont eat..she takes soaks and drinks..I give her baby food soak to try to force some nutrients it...she will not eat worms or anything else..Ive tried just about everything on the list to get her to eat shy of force feeding her....she is in a vivarium with my other ttbt who is healthy and eating..idk what else to do...

About a month ago you were taking her to a vet. Did the Vet find any egg bound or pelvic issues from the broken eggs? What did the vet say? Was she put on any meds? I would isolate her in her own enclosure for a week or so and see if she'll eat without the other Boxies around, this will also prevent any problems she has from transferring to your other boxies (if it's a health issue).

i go to the vet tomorrow, but they are not specifically reptile vets..they are limited.....im going to inquire more..this is going on too long now...i think she will need an xray

Quarantine her on rep carpet, no substrate. See if she is pooping and if so have the poop checked. You will also be able to more easily tell if she is eating something this way. She may be eating when you are not looking. I have a special needs baby that can't catch live food and that I have not seen take a bite of food in over four months, but he is pooping and he gets up and goes to the water hole and basking zone everyday so I know he is eating something from somewhere.

I would try separating as well, there could be some bullying going on that you don't see and she may be more inclined to eat if alone. Hope your vet visit goes well.

Definitely separate!