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CAUTION: If vomiting becomes extreme, see your doctor as soon as possible. This may be a sign of a severe case of morning sickness called hyperemesis gravidum that occurs in less than 1 in 200 pregnancies and may require hospitalization.
From the book Super Fit Mama by Tracey Mallett. Excerpted by arrangement with Da Capo Lifelong (www.dacapopress.com), a member of the Perseus Books Group. Copyright © 2009.