Side effects

I tell myself that it's just the caffeine
making my heart race
this late at night.
But something else is on my mind.
Something else is affecting my heart.
Affecting my brain,
chemicals running everywhere.
Chemicals I can't explain.
Moving around my body,
keeping me awake
and telling me how to feel.
Giving me irrational thoughts
and encouraging bad ideas.
The coffee wouldn't do this, right?
I can't sleep so I lie hopelessly awake,
watching the clock slowly move
towards the new day,
knowing full well that I have to be up
in a few short hours.
The only sounds are the beats of my heart
and the click of the keys.
Maybe drinking coffee
after eight in the evening
wasn't such a great idea.