The intestines in a worm help the worm digest food.
umm not sure about what kind of worms in ur intestine but im pretty sure it shouldnt b there n u should probably go see a doctor about it!
Of course it can! The worms will slowly eat u from the inside and it will reproduce in your stomach and soon their will be nothing left except bones and the yucky bits they didn't want to eat. So Yes
its cool
it grinds up the food even more