Alcohol does more then just screw with your mind, it messes with your control of blood sugar and body heat, among other things. If at any time you're worried that it's not normal TAKE HIM TO THE ER. Give him water, it may make him hurl though. The water serves too purposes, if there's anything in his stomach he'll puke it up. This can remove alcohol that hasn't made it into the system yet and shorten the recovery time. Also, it helps prevent dehydration which is a big threat. Between the amount he's pissing, puking and sweating (your body will excrete out chemicals out of the system through sweat, you take in a toxin like alcohol and it will sweat alot of it out) he very well may be dehydrated. Alot of the problems that is a "hangover" is from the dehydration and blood sugar problems your body has to try to recover from when drinking. I once had to force a girl to drink water to puke up most of a bottle of 99 apples or some crap like that because she had downed way too much and already couldn't walk. It was freaking disgusting, and I spent the rest of the night with my arm across the toilet and her forehead resting on it. Not the most attractive thing in the world.