The wounds on her neck are most likely why she is not eating much. Externally the wounds may look fine, but her neck is still healing on the inside as well which will make eating painful until it is completely healed. Think of it like trying to eat while you have a terrible soar throat. The...
Where was she bitten?
When she is outside is she in a run or free-range? She is hiding because she feels vulnerable. She most likely will not forage until she feels safe again and with it only being 5 days ago it very well may be too soon especially if she is not in a run with a roof. I would...