Chucks need company of their own kind so maybe shes a bit depressed ? Animals do get down, especially after a trauma like fox attack. Hasnt anyone got a chuck u could have ? What was the 'oil treatment' you spoke about ?.
Make her a scrambled egg, mine love it as a treat. The protein will do her good.
They do get squirty poo from time to time as they pick up stuff. Your doing your best by her, dont feel bad

You can use a syringe to get water into her mouth, little at a time allowing her to swallow.