Eternal Escape

Running a marathon with all my might.
Pushing myself.
Breathing hard; Lungs are burning.
Feeling like I can't take another step.

I'm trying to escape from a thought
A memory; an idea; a fear.
I'm afraid of what I am becoming.
My own worst nightmare?
There are times when I can't tell.
But then it hits me like a first.
No matter where I run
Or how hard I fight,
The thought is always there.