Female 5yr Ball Python fasting 6 months..

[Myrodinn]

I am wondering if anyone can give me some pointers as what to do, because I am at a loss.
My Female Ball Python is 5yrs old and has now not eaten for 6 months, her temperatures and humidity are at optimum levels, she has her basking spot, 2 hides to go to and is still active, showing no different signs then usual.
Recently went to the vet and the Vet said everything was normal from looking at her, they also took blood sample, and still everything seemed to be normal, Yet my ball pythons refuses to eat, she has 0 signs of interest in any food.
She normally goes on food strikes for about 3-4 months but no 2 months over usual and is just recently after 5 months starting to lose weight very slowly.

The Humidity is 62-65 and temp in day 78-90 going to 70-75 at night.

Any help would be appreciated.