Nose

I have a problem with my nose
For some odd reason it grows and grows
Then at night it shrinks again
Back to where the day begin
I know not why it does this thing
It doesn't happen when I sing
It doesn't happen when I dance
Or walk around in my underpants
It only happens when I don't look
Like when I stare and read a book
Or when I watch a tv show
Or at the gym, or in the snow
Why does my nose know no end
Except for when the day begins
I guess I'll just forever be known
As a nose that's never fully grown