This Pain I've Kept from You

There's this feeling that I hide away,
From the world and from myself;
A feeling that I keep at bay, behind my bitter shell.

I can fight it for a day, for a month, maybe a year,
But I can't fight forever, and my end is drawing near.

My mind is overwhelmed by emotions that I quell.
I'm exhausted by the thoughts failure, could it be that I'm in hell?

Or has this become reality, which I live from day to day?
Could it really be that I've become this way?

The pain, it sinks into my skin, like a knife it cuts me down.
Behind these cheerful eyes there is an underlying frown.

I will never let you see this pain that I have kept from you.
Because I would never want to make you feel the way I do.