I get headaches of varying severity which I can deal with. Dicky tummy is harder to deal with, but generally the fault of whatever kebab I've had.
My mate's hangovers go on for four days. The skin peels off his hands. He has night terrors where he wakes up in the bed, it soaking wet with sweat. Recently, while hungover he's been in bed, been seeing corpses lying in the corner of his room and the other night, a ghost appeared on the end of his bed and said hello