Am I going crazy?

Perhaps one should define the term crazy,
maybe it is these moods swings: always violent but never long.
Or my hysterical crying in the early morning though I never remember what for.

On the days it rains hardest in the black of midnight,
I rise from slumber like the undead to stare blankly at the water-streaked pane and wonder
"Why me?!
Why was I blessed to hold a mind this heavy?."
In the spirit of my family name I never talk about it,
about the insane thoughts that run like school children in summer between my ears.

My father once told me he would love to see a psychiatrist just to sort some things out but I have to wonder how much a man with a family history of hiding yourself behind intellect and avoidance tactics could mean it.
My grandmother still doesn't call to tell us she's sick,
just mentions it as an afterthought,
a hey-I-forgot-to even as her husband slowly forgets everything he thought he knew.
Maybe I was born with this shame in my blood,
or maybe that is where this sickness came from,
My ever present thoughts and their not so secret toll on my wellbeing.
But since we don't talk about it I have to wonder:

is this just me?
Am I going crazy?
Is this why all good poets write?
Is this why they all **** themselves?