Husbandry: sterilite 41 qt tub, hot spot 90. Cool side 80. Humidity 57%

Tonight I was LITERALLY woken my from sleep by this loud noise coming from my corner, it sounded a grown man passing gas, IT.WAS.LOUD.

I realize it had to be coming from my BP, she is exactly 712g as of yesterday.

I open her tub to find a MASSIVE, and I mean MASSIVE poo. There was one big piece that looks like it came from a medium sized dog, and the rest splattered everywhere. And I mean everywhere, across the tub, on the lid...everywhere. As I inspected it I saw a hint of blood in her stool. And some blood around her cloaca. I noticed she has not pooped for 2 weeks, only released urates.

Could this be her just cause her poo built up and now she is just "letting loose" ??

She is acting completely fine, I'm cleaning her tub now.

Has anybody had this happen?! I've never heard something like that come from a snake EVER. Is the blood something to worry about? She ate a 90g rat last Friday the 20th. I just don't know what to do

I do have pictures if it is necessary.