little confused, but hope to help
im a little confused about the way you've worded your question.. although i think what you're saying is that you've been feeding your snake two fuzzies at a time for the last five weeks and now you have a suspected partial regurg? If the problem is regurg., then i'd suggest checking your snakes viv's. temp. to make sure it hasn't changed in the last five weeks. Make sure your snake has water available to it after it eats in case it needs a push to get it all the way down. Don't handle your snake for up to a day after it's eaten to avoid upsetting it's stomach. And just keep an eye on your animal for the next couple days.. if its fine, like you say it has been; don't even worry about it. Everyones snake barfs sometime or another.. Sometimes for seemingly no reason at all.. As far as only barfing up part of something goes.. I can't help explain that one.. Hope that helps.. hah, and i hope that's what you were asking.. Cheers.. Ty..