Morning sickness is often the first sign of pregnancy, as it can start as early as 2 weeks after conception. Despite the name, the sufferer can feel ill at any time of the day, although as an empty stomach is thought to be one of the triggers then mornings are a common time for it to appear.
Not every pregnant woman will experience morning sickness, although most do to some degree, and it can vary from a feeling of mild nausea or queasiness ranging up to feeling truly dreadful and unable to keep any food or liquids down. The severity of the effects seems to be greatest in women with a history of migraine or travel sickness.
It’s not known exactly what causes it, but most doctors agree that the changes in hormone levels that pregnancy triggers are the most major factor. One of the effects of these hormones is to change the way your digestive system works, which can lead to higher levels of acid.
Another possible cause is that many women experience a heightened sense of taste and smell while pregnant, which can make nausea feel worse when unpleasant or strong odours are around.
Finally, tiredness and stress play a part, and most pregnant women...