Threw up 4 times in quick succession then repeated the show a couple hours later. no fever. is this serious?

DON'T KNOW: Stomach viruses can cause these symptoms and usually self limiting and resolve anywhere within 24 hours to up to 10 days. If the symptoms persist or you start getting other associated GI symptoms, than you need to see your dr or a GI dr. For an evaluation, best wishes.

It may be: We can not say how serious it may be as we do not know the exact cause of your vomiting.It may be a simple upset stomach like gastritis due to something you ate or due to some meds.The other causes depend on other symptoms like diarrhea/constipation, abdomonal pain, fever and others.It can be from 1gall bladder diaese2intestinal obstruction3gastroenteritis4pancreatitis5sepsis6head injury get checked.