Nausea and Vomiting
Nausea and vomiting are not diseases, but they are symptoms of many conditions. The main causes of nausea and vomiting are infection, food poisoning, pregnancy, and medications. Nausea and vomiting can also be caused by anxiety and emotional stress.
Nausea is an unpleasant feeling in the stomach that may come before vomiting. It is often described as a feeling of queasiness or discomfort. Nausea can be a symptom of many different conditions, including pregnancy, anxiety, motion sickness, and infections.
Vomiting is the forcible emptying of the stomach when its contents are brought up through the mouth. It is often preceded by nausea. Vomiting can be a symptom of many different conditions, including pregnancy, food poisoning, infections, and motion sickness.