Jitters

I just realized how much coffee it takes to make me jittery. It's somewhere between nine and ten cups of coffee. I kept drinking it at work today because I was cold. My hands kept shaking and I kept wondering why. Then it dawned on me. Not the most brilliant of insights for the day, but one nonetheless. What am I doing now? Drinking decaf. I'm no longer jittery, but I'm sure I should start cutting back for when I don't have free coffee at my disposal all day. Yesterday I was having withdrawal headaches.