So our girl STILL hasn't eaten since late Oct/early Nov
1# I would recommend you to buy a scale (kitchen scale will do) and monitor your BP's weight.

2# Beside the health issue that have played a part in your BP’s refusals could you tell us more about her husbandry?

What type of enclosure do you use?
How big is your enclosure?
Is your enclosure in a low traffic area?
What are your temps (cool & warm side)?
What is your humidity?
What type of thermometer/hygrometer do you use (dial,stick,or digital)?
What kind of hides do you provide (log, homemade, cubbyholes etc) and how many do you have?
Are your hides tight (all side touching your BP's body) and identical?
How often do you handle your BP?

3# Force feeding should be done as a last resort when everything else has failed and the animal's health is declining.