Breathe, Breathe

Breathe, breathe, just take in air,
If I stop, who should care?
Self, brain tells me suddenly,
You breathe or meet end painfully!
I swear it will strike unpleasantly,
Your lungs, they shall burn,
Your stomach, it shall churn,
So breathe!  Breathe! Don't stop!
You've yet to reach the mountain top!
Lungs will implode rather than pop!
Have you decided where you'll go?
Stupid brain, my solitary foe,
Breathe, breathe, ok fine then,
I can still still wait for a time when,
I can stab myself with this pen!