Thanks so much Merlin!I,too,thought first that I might have spooked her,but then I looked several times at the last feeding in the box,and she seemed fine with it.But she needed quite some time to swallow the last rat.But this time it was the same size(about the width of her thickest body).I don't think it's too big,because she had even bigger live rats.Well,I have to wait and see how it goes next time.
As far as I know,Nikita was always hungry at the previous owner and ate every 5-7 days or so,about 2 rats each feeding.
I must ad that she was very active after I put her back in her terrarium and was climbing around all over the place,so I guess she's ok and not ill or anything.But she didn't rattle when I took her out of the terrarium and she didn't rattle when I took her back,only when I stayed to watch her,so this is a good sign that she is getting slowly used to me

.
If you don't mind,I keep you posted how her next feeding goes!Thanks for your interest!

(hugs and kisses!)