PaperDolls, if you do decide to cut out caffeine, try to do it gradually to avoid withdrawal. I don't know how much caffeine you take, but the general advice is to cut 50 mg (approx 1 cup of espresso) per day, if not slower.
I used to drink about 8 cups a day and quit cold turkey. The w/d was nothing compared to alcohol, but it was still pretty uncomfortable. Headaches that don't respond to medication, lots of fatigue and sleepiness and general crankiness. Lasted about a week.
On the upside, I found that eventually my quality of sleep improved a lot, and my energy levels leveled out. I'm now drinking 2 cups a day, however - my one guilty pleasure.
Usual disclaimers apply
Matt