Too Much Caffeine?

Do you ever have a day when you feel stressed for absolutely no reason. You notice you have this uneasy feeling but no real cause. I've had that feeling today. I think it's probably just my hectic life and running in all directions. I have so much on my mind. I have a million things to get done. It seems overwhelming sometimes. Now with the holidays coming up there is that much more on my mind. Still I can't relate the stressed feeling back to any one specific thing. I think it also has something to do with how much coffee I consume. Seriously I get anxious when I drink just a tad too much. I have to be pretty careful. Top that off with my regular cups of diet pepsi and we're in a lot of over caffeinated trouble! haha I have been buying some caffeine free generic lately. It's not as good as my diet pepsi but I think I'm just ever so slightly addicted to the carbonation. I need to break the habit. Now, if only I could figure out how.