They are trying to make sure you do not throw up.
The symptoms of concussion are dizziness and nausea (feeling like you might throw up) and a sore head. However it is possible to have delayed concussion which means that the injury has happened but you don't get the symptoms until later. This can be a problem if you have gone home alone thinking that you are OK and the symptoms come on when there is no-one around to get you to hospital.
It means you need to go to the hospital. You have more than a concussion!
CONCUSSION
Go to the hospital. It sounds a bit like concussion or another head injury. It is very important that you see a doctor as soon as possible
when you get a concussion. you black out and don't remember anything. when you wake up you will be asking questions and everything and wont know where your at. then you will start remembering stuff as soon as your up.
Concussion.
concussion
A double concussion is a concussion that immediately follows the first concussion, or occurs before the injured party is asymptomatic.
It made me throw up pretty bad. I was okay until I smoked, but after I did I became nauseous and pretty pukey. The next day the same thing happened. You definitely need to let your head heal.
Long as you're not the pilot, and you got plenty of water and a place to throw up in, I suppose you'll be kipper. Oh, and bring some kippered salmon or moose meat. -NotADoctor
to throw up to throw up