Stay hydrated: You must stay hydrated, and if vomiting is preventing this, you will have to go to the ER for intravenous fluids. Most likely cause is a stomach infection form a virus, or bacteria. Ok to wait a day or so, but if your urine is dark yellow, you are thirsty, and your skin seems stretchy, then just go. It could be very serious. Hope this helps!
Answered 2/9/2015
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