I can't say or sure what you should do since I haven't seen the snake but I will say that unless you notice weight loss or some other symptom then you shouldn't be too concerned. I have 3 females that went off feed in Oct and they all just started back up in the last 2 weeks. Yes I did cool them, but they still stop feeding sometimes even if they aren't cooled. I didn't cool my younger balls and some still went off food for the winter anyway. I hope you get her feeding again soon!

BTW, have you tried feeding live? I know you mentioned trying a variety of f/t but trying live can really make a difference.