I discovered that my stomach can hold quite a lot more than my head.
How so? Do you get over-caffeinated?
Yes, very much so.
Oddly enough a cup or two is not a stimulant effect, but a relaxing sleep aid. It's like the caffeine dose, in two cups, is below a threshhold and the effect is almost non-existant. I think it's the warmth that relaxes me, mostly, but the warm milk thing, which doctors sometimes recommend, doesn't work for me. I also find that when I'm over-stressed and hyper-active, a cup of coffee or two will calm me down quite nicely.
Three cups could go either way, it seems to be the break point. If I drink four or five cups, though, it's just too much I get the shakes really bad and can't think, straight. When I'm over-caff'ed I get "stuck on a word", like a faulty digital transfer and repeat the same things over and over, followed by a huge, letdown crash and a really bad headache.
