There is absolutely no need to force feed an adult and what you are experiencing is pretty common.

Animal that are generally force feed are animal that just hatched and do not feed on their own and animal with declining health.

BP fast for various reasons, stress, husbandry, overfeeding, seasonal, breeding etc.

Assuming your animal has a good body weight and is well hydrated there is nothing to worry about, she could go for MONTHS without food,

What should you do

  • Make sure your husbandry is OPTIMAL.
  • Monitor your snake make sure there is no significant weight loss, make sure your BP remains well hydrated.
  • Offer smaller preys nothing larger than a small rat once a week.
  • Wait it out, your BP knows how to eat and sooner or later it will.