First off its very possible to vomit fecal matter.
Secondly, not after just five days of not being able to defacate.
Third, if she had 107 temperature she would have be already long gone dead even if she got slightly past 104. She'd just be brain dead to say the least.

Also, I've gone a minimum of three weeks without a bowel movement. Frequent tendency to defecate yet nothing comes out. If anything perhaps only something the size of a nickle. Even then I didn't vomit fecal matter yet experienced other pains and discomfort.

She must have not been able to relieve a normal bowel movement for longer than five days. She probably ate something of hamurger meat or dark bread, something in that nature that would come out looking like fecal matter.

If she was really throwing up that shit, she wouldn't be laying around crying. She'd go to the doctor. She'd most likely have continuous problems from then on too. Don't be so naive.

Although the day I ever vomit shit, im taking pictures cuz knowing me I'd be intrigued by ever bit of it. Except for the taste I'm sure.