Nothing.

I can feel my chest begin to tighten up.
I can feel my lungs struggling for air.
I can feel my breaths being ripped from my lungs.

I start to shake.
I start to stutter.
I start to cry.

Everyone asking me "what's going on?"
Everyone asking me "what happened?"
Everyone asking me "what's wrong?"

My answer,
Nothing.

Anxiety is what is going on,
What happened and,
What is wrong.