[dictated with much sarcasm]
Good morning, sunshine. Sleep well? How's your 'ead?
Now I hope you don't mind, but after you passed out on us yesterday, I did a small-scale examination. You know, to test my theory? There're not too many obvious things that give the symptoms you were showing, and seeing as you'd had half a beer and a few swigs out of that flask of yours, it was really rather painfully obvious, what you're going through. And really, you don't have to be a brilliant doctor to notice this; I see it all the time down the pubs.
You've got zip alcohol tolerance, mate. Yes, I know, deny it all you want 'cos you drank like a fish back home, yada yada, but Tosh and I figure it's your loss. So unless your liver decided to lose some muscle between now and then, you're gonna have to lay off the alcohol completely.