The Monster in my Head

One more time, yank the jagged rusty knife across to display a crooked bloody smile. In the mirror I see its eyes, demonic and ill-divine.
 It copies every motion, every little move. Twitching under skin and slinking through my veins, sprouting in my nerves and eating away my brain. It settles around my soul, unable to take it whole.
Dead eyes fixate on the shadows as it crawls across the floor, only making contact when I sleep, it begins to invade my dreams.
 Now I'm afraid to drift away and my sockets only sting. It stalks me in the day and attacks me in my sleep.
 Seldom do I speak of it but all should know its name, its feeding frenzy is non prejudice and its victims are many. It calls our minds its home and it feasts upon the weak.