hi
I had this EXACT same thing happen to me.
My female Anery corn "Aimee" was about 5-6 months old when I happen to have fed her when her eyes were blue. None of my other snakes had ever ever had a problem with this so I didn't think twice. She ate eagerly though She regurged that prey item. I removed the item, let her shed then fed her a week later and things went perfect.
I figured it was one of those things that just happens and months later again fed her when her eyes had *just* turned clear again after the blue...well again eager to eat but a regurgatation.
Aimee is one of those snakes who just can't eat while in shed. She never ever regurges any other time but those times when I mistakenly fed her in shed. I believe some snakes just can't/won't eat while in the shed cycle. I don't know why, maybe someone else has a clue but I suspect your snake is like Aimee, and during sheds doesn't want to fed...or can't because of the shed cycle. It happens. Some snakes are like that, most aren't.
I would wait 7 days from now, Let her rest, don't bother her. She will shed in the 7 days...then when 7 days is up try and fed her again....maybe a slightly smaller prey item but most likely she will do just fine and digest it normally. If she does do fine with her next item, and has no regurg, I would suggest waiting for her shed cycle to be complete from now on when you fed her
bmm
