Let It In lyrics

It starts with an itch and a tingle Then it builds and expands And suddenly all at once my legs won't let me stand I scratch 'till my fingers go numb But my skin never bleeds A silent accomplice waits and feeds when I'm asleep There's something that lives inside me I promise I never let it in It grows and divides inside me It's making a home beneath my skin The seeds have been buried deeply The roots are in place It's crowding the Sun and it's darkened my days I've taken it all for granted But now it's too late There's nothing that's left to do but wait