morning sickness 
noun [mass noun]
Nausea in pregnancy, typically occurring in the first few months. Despite its name, the nausea can affect pregnant women at any time of day.Surging hormones, however, have long been blamed for women's morning sickness and other pregnancy side effects....
- About two-thirds of pregnant women suffer from morning sickness, which can actually last all day and night!
- Ginger syrup is a traditional remedy for morning sickness in early pregnancy.
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