Caffeine Free

I've taken another break from caffeine, and well, I'm tired. It is 9:30 in the morning and I'm tired already. Since my drink of choice is Mountain Dew, every once in a while I like to prove to myself that I'm not addicted to caffeine, the last time was over 2 years ago. I don't drink Mountain Dew for its caffeine, I drink it because I like it. The side effect is that the caffeine creates a bit of a physical dependence that I could do without. I've had a few headaches and I've been more tired than normal, which will probably last about a week. I figure I'll stay caffeine free for about a month, for now, I'll drink a lot more water and other beverages that don't contain caffeine.