Bitterness. When everything seems like it wants to see you die. You bump your head on self doubt. Despair runs circles around you flashing its teeth. You recoil with bitterness, you feel dizzy and sick. You feel the sickness of the entire world coursing thru your body. You become filled with pure hatred for all that is. You find all things poisonous. You reel like an ocean of sickness. What brings on this bitterness? - Henry Rollins, "Black Coffee Blues"
I don't know. I'm not bitter.