Most likely this is a house bug or centipede. They dont bite, they are just annoying! If it doesnt have spikey things sticking up and lots of legs and can move really fast its not this and its probley just some kind of worm.
a pompeii worm
i forgot what its called but its dangerous so go to vet immediately
a inch worm
Maybe a tape worm, or an over-sized maggot.
Wood Worm. :D
Canker worm
tapeworm
1 inch to 85 feet
the tape worm can be as long as 2fett and as short as 1 inch
inch worm
tube worm
A gummy worm is about four to six inches long for the ones that look like real worms. They also make shorter worms that may be an inch or so long.