Nessa Barrett - dying on the inside

It's been my best-kept secret for a while now
No one ever sees it, but it's all around
It's the dinner conversation no one talks about
Don't know how much longer I can keep this down
Beauty is a knife I've been holding by the blade
Swallowing my pride so I won't eat anything
It's all a lie, honestly, it's eating me alive
They're all like
"Did you change your hair?"
"Did you lose a little weight?"
"You should keep it up 'cause it really looks great"