Nausea is an unpleasant, diffuse sensation of unease and discomfort, often perceived as an urge to vomit.

While not painful, it can be a debilitating symptom if prolonged, and has been described as placing discomfort on the chest, upper abdomen, or back of the throat.

Nausea is a non-specific symptom, which means that it has many possible causes.

Some common causes of nausea are gastroenteritis and other gastrointestinal disorders, food poisoning, motion sickness, dizziness, migraine, fainting and low blood sugar.

Nausea is a side effect of many medications including chemotherapy, or morning sickness in early pregnancy.

Nausea may also be caused by anxiety, disgust and depression.

Migraine is a neurological syndrome characterized by altered bodily perceptions, severe headaches, and nausea. Migraine is a common illness, with …

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