My head hurts and I feel like shit why?
That's easy to fix: keep drinking.
(When I was still drinking, I would never kill a hangover by drinking on it; I thought that it is a manly thing to suffer. Then once I woke with a wicked hangover and had Scotch and energy drink at home. I mixed a healthy combo for myself -- not quite half-&-half but close to it --, downed the mix, went back to sleep and when I got up, I was without pain.)