CVS is a chronic disease marked by severe, recurrent episodes of nausea and vomiting in a person who is otherwise healthy. CVS episodes often flip-flop with states of wellness. Vomiting may occur every 5-10 minutes for several hours during an episode. On average, CVS episodes last 3-7 days but vary with each person.1 An episode may be accompanied by stomach pain, tiredness, sensitivity to light, and/or headaches.
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