Hi Kels,
sorry you are not well, ring your doctor, you need fluids and if you can't keep water down then you will get dehydrated. Seek medical advice - you have NHS direct or something like that don't you over there, perhaps ring them if your doctor doesn't take calls. Hope it passes quickly, my eldest is down with it today also after the other 2 and I having the bug last week.
Take care.
Doirin