I have finally accepted that with excessive alcohol comes feeling very crook the next day. As I have headed past 30, my tolerance of hangovers has reduced markedly
to the point now, I took it very easy last night, and watched people around me hit it pretty hard, knowing they would be like bears with sore heads in the morning.
I know, I must be getting old.
My longest hangover ever went for over 2 weeks, after drinking a litre of Jacks and a litre of Beam in an hour, straight. then passing out under a tree. Was working in hospitality at the time, and had to close the bar before going to the staff christmas party. I had some catching up to do when I got there 
Was like a maggot within a hour. Dropped a sausage in the staff sauce bottle (4 litre camp sauce) No one knew, it was in there, I had forgotten ( ) it came sliding out on to a kid's pie about a month later, nice and pickled 
Every time someone ordered a spirit drink for the following couple of weeks, I poured it and went out the back to hurl, and nearly 8 years later, I still can't drink Jack Daniels
no need to apologise