10 Stomach Flu Symptoms
Symptom #6: Headaches
Headaches can be a symptom of the stomach flu. Most importantly, they can also be a sign of dehydration in the patient.
Acute gastroenteritis can cause fluid depletion through profuse diarrhea and vomit. This can decrease the body’s blood volume and cause dehydration and consequent hypotension, particularly when standing up after lying down (orthostatic hypotension). It can be accompanied by headaches, lightheadedness or dizziness. This can be especially dangerous in infants and elderly patients.
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