Originally posted by: Clair de Lune
PlasmaBomb, good stuff you wrote there. A lingering question:
I ate at 8pm (had a FEAST), started drinking at 9ish til midnight. Why would my body throw up as LATE as 5am? Was it because the food was 'buffering' the alcohol and my body was effectively still drinking while asleep and when it couldn't take it anymore at 5am, it woke me up to throw up?
This sounds about right, what do you think?
As for:
It is likely that if you threw up at 5 am your are still drunk at 10 am... and it is uncommon* to have a hangover when you are still drunk (you can feel rough and tired, which will get worse as the alcohol leaves...)
As stated, when I woke up at 10am, I was surprisingly okay. No hangover, completely sober, and just exhausted.
It literally came and went like a storm. It's 1pm now, I feel better.
Why would my body throw up as LATE as 5am?
I don't know, I would have thought that you would have thrown up within a couple of hours. I was kind of hoping it was a late one
This is conjecture...
Normally your BAC peaks within 1 hour on an empty stomach (IIRC, it is complicated by %vol etc.), because alcohol is absorbed from the stomach, unlike most things which are absorbed from the intestine, as thus dependant on gastric emptying... (passage of the stomach contents into the intestine).
Food certainly slows the absorption of alcohol, and taking alcohol with a meal will likely result in your BAC peaking later, say around the 2 hour mark after you stop drinking... (hence why I was bitching in the Drink drive thread).
The reason being that meals delay gastric emptying, and the intestine is designed for absorbing nutrients (and in this case alcohol). Its greater surface area results in it being more effective at transporting the alcohol to the blood.
A big meal would require longer to pass through the stomach, so it is possible that having a 'feast' has chronologically spaced the delivery of alcohol to the intestine...
Graph
A = sitting
B = lying down
As you can see, with a big meal it takes a long time for the stomach to empty... (a large meal in the graph is ~ 1.4 lb of beef w/ tomato sauce - think bolognese). Lying down also slows the transit of food from the stomach... as does age...
Teh very mooch conjuncture bit...
So since you had a big meal and gave it some time to settle, it could be the spirits weren't well mixed in your stomach... remaining in the proximal stomach for some time, before being dumped into the intestine.
Although I would have though the beer would have resulted in a semi solid mix (chyme) and have allowed the spirits to mix... *shrug*
Thus when you threw up you removed a good portion of the alcohol...
Hence why you were able to wake up fairly sober...
I would expect vomiting to occur at BAC > 0.2% and elimination to be about 0.02% per hour. Thus if you hadn't got a bolus of alcohol I would expect you to be still visibly drunk after 5 hours...
That explains it but is fitting theory to the facts (bad

)
Has the story been confirmed by a non-intoxicated person? There could be another explanation...
Edit: I think re-reading the OP I have overestimated how much you drank...?