Cyclic Vomiting Syndrome (CVS) (cont.)
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What are the symptoms of cyclic vomiting syndrome?
Cyclic vomiting syndrome is characterized by attacks of intense nausea, vomiting, and lethargy that last anywhere from an hour to 10 days. An affected person may vomit several times per hour, potentially leading to a dangerous loss of fluids (dehydration). Additional symptoms can include unusually pale skin (pallor), abdominal pain, diarrhea, headache, and an increased sensitivity to light (photophobia) or to sound (phonophobia). In most affected people, the signs and symptoms of each attack are quite similar. These attacks can be debilitating, making it difficult for an affected person to go to work or school.
What triggers cyclic vomiting syndrome?
Episodes of nausea and vomiting can be triggered by several different factors. The most common triggers are emotional excitement and infections. Other triggers can include periods without eating (fasting), temperature extremes, lack of sleep, overexertion, allergies, ingesting certain foods or alcohol, and menstruation.
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