Motley Boa Constipation/Regurge?

So, I have never dealt with something like this before so I wanted to see if anyone else has seen this. I made a vet appt. for Tuesday for my 2015 boa because he still had a good sized lump in his belly 10 days after feeding. I have him housed in a 4 by 2 boamaster; RHP on one end with temperature at 85 degrees. I did bump it up a few degrees since I figured he was having problems digesting. I also let him soak for about 20 minutes yesterday. Tonight, I came home to quite a lengthy piece of excrement. I'm not totally sure if it's poop or regurge but given the smell is horrid, I'd assume regurge. With that being said, it is HUGE! Is this something anyone has seen before?

https://drive.google.com/file/d/0B1_...ew?usp=sharing

I'm not sure that is a regurgitation. It looks almost like a poop that is partial paper towel or some fabric or something. It would make sense as to why he would have a lump after 10 days as there was no way he could digest a paper towel or something like that. It probably smells horrible because he was bound up and the stuff was just rotting in his gut. Is the lump gone now? How does he feel when you pick him up, do you feel anything hard on his underbelly like a plug or anything? Also looks like some blood mixed in there so he must have struggled to pass that thing. I personally think you are lucky as I've seen boas that have eaten paper towels that got wrapped in a rat and they couldn't regurgitate it and died with half a puked up paper towel hanging out of their mouth.

As for temps, 85F is plenty warm for digestion. All my gals spend 90% of their time on their cool end which is around 78-80. They go to the hot side which is set to 88 with my Herpstats only for a day at the most. But I also feed all my gals smaller prey. I don't try and stuff them with the biggest they can eat. An example is my 6' girl gets a weaned rabbit every 2 weeks which about the size of a medium rat. My 4' girl gets a weaned rat every 2 weeks and my 4' pied girl gets a small rat every 2 weeks.

Not sure if you felt the poop but did it feel like a paper towel or fabric or that type of texture? It looks like it. When my gals poop, it is usually like a brown hotdog made up of fur and the soft poop type poop if that makes sense lol.

Welcome to the forum Stryker.

I believe Sauzo nailed it. There's no mistaking the smell of regurge. And being that long, sure adds up too.

That regurg looks just like the paper towel it is sitting on. Are you feeding on paper towels? If you do, may want to stop doing so because that could have killed your snake. If it was biological matter such as its last meal, it wouldnt look like that.