Aftereffects

This morning I sat down to write
But nothing seemed to come.
No meta, fact, or bitchy rant,
No fiction or pretentious cant,
Just doggerel without a bite.
It makes me feel quite dumb.

The reason is my brain's awash
With headache cure I took last night
Which leaves no room for brilliant thoughts
Or snarky lines or cunning plots.
Just stupid rhymes that I can't quash
And sensitivity to light.