Because I'm "strong"

I break under the pressure
Though I never relent
My heart plays the catcher
But my body feels spent

Emotions take their toll
I'm spinning in circles
Life bleeds out of control
While I'm jumping hurdles

Born with an ache in my core
A need to be of use
My heart is broke and sore
But my mind revels the abuse

With eyes weary from time
I begin at the close
Everyday, countless "I'm fine"
Nobody needs to know