Invisible Walls

Walking and suddenly...
Stop and stare
Cold sweat, wide-eyed
Falling down, to a deeper beyond
An end is coming, An end to me
Heart racing, a heavy beat
Invisible walls, closing in
An urge to run, yet an urge to stop
But why
Because everything comes back into focus
There is no need to run
There is no need to hide
Just another panic attack
Has occurred inside