Ok wait for it. This is golden. Listen closely, my child.
You need that isotonic Lucozade. It is magic. Magic.
The flat yellow stuff in the bottle with the sports cap. Sometimes you can get it in a pack of 4. Send DH to the garage for some now.
Drink a whole bottle, in careful sips, over an hour. Then have a pack of cheese and onion crisps. They should be Tayto, but if you are not so blessed, Walkers will do.
Sip more Lucozade. If the crisps stay down, after about half an hour, take two ibuprofen and have some toast OR a sausage roll, not both.
Continue sipping Lucozade throughout the day.
In future, before you fall into drunken slumber, down a bottle of the stuff with two paracetamol and you will only get a baby hangover.
I used to work in a pub and had crippling hyperemesis in pregnancy, the above has been developed from personal exper, tested on numerous customers before, during and after lock ins, and is also suitable for pregnancy and post norovirus recovery.
It has to be the isotonic sports Lucozade though. No fizz. Avoid all the fat coke enthusiasts.