The Sickness

There's a putrid, pulsing feeling
Like a demon within the sealing
From within my skull it must bang
Making me shake and strain
Pushing and pulling my concentration
Taking all of my satisfaction
I'm all the worse for wear
This demon doesn't like to share
It seems to think that it's fair
To throw my boiled mind through the air
I'm battling it to the best of my ability
But it keeps making me lose stability
Leading me down a path of wickedness
I think I might fully embrace this