Except That I Am Crazy

Black Mood,
Brown study,
Blue funk.
My mood colors,
Swirling, shitty,
Dung dark,
Heavy like a swollen belly
or a throbbing, broken arm.
Why?
For no reason,
Except that I am Crazy.
Some chemical in my brain
Isn't transmitting what it should
or is transmitting what it shouldn't
and the corners of my eyes
crowd with nightmare images.
I become self obsessed
I become impenetrable
I start to hate.
Why?
Because I'm unreasonable.
Really why? 
For no reason,
except that I am crazy.