RE: Ooooh Don't go for one of those ready made banana milkshakes though - as it's doubtful they've seen a banana! Make your own.
as someones said drink loadsa water to stop dehydration that is what makes yer feel real bad(dehydration), take couple of pain killers also (all before bed). then when you get up force a bit of grub down, I know this I am an expert and feel I can say above with vast experience....