Existing (Almost) Entirely on Caffeine

It's bad for you, apparently. My brain is hyperactive, my extremities are freezing, my stomach is eating itself, my hands are shaking involuntarily, and I'm STILL FUCKING TIRED. How is that even possible? It should be against the laws of nature or physics or something. Particularly when I've taken over a full fourth of the gigantic table I'm sitting at and am listening to the Nutcracker in a vain attempt to soothe my rapidly fraying nerves. Oh, and I definitely started hallucinating words on pages already. Shit.