I feel like this poem needs a good revision or few, so any thoughts appreciated:

Somewhere in my head
I am always screaming -
hands straining to clutch at my temples
jaw clenched tightly open.

Somewhere in my head
a fire begins to burn, wetly.
The coals it ignites make my skull glow with heat -
but I can not flinch my scalp away.

Somewhere in my head
A dark star blooms.
Its black light blinds me from the inside,
inside where I have no eyelids to shut away that violent sun.

Somewhere in my head
I slowly realize there is an intangible weight
Suffocating something that is not breath, and pressing
with a heaviness that no strength of mine can carry.

I can I walk away to find quiet -
and stare at nothing with hooded eyes;

but somewhere, in my head,

I am always screaming.