You were a person with a normal life, and good health, only THERE WERE PEOPLE LIVING IN YOUR NAVEL!

those people who lived in your navel were kinopio, sonic and finn. sometimes your navel got a little itchy, and sometimes you hear some muffled mumbling coming from your navel.

Finn: weird.. this Navel smells bad, but.. it's kinda nice to smell it too..

Sonic: i'm gonna stay here, it ain't bad.

Kinopio: maybe we can make some kind of room here! Y'know guys, like put a tv and stuff-