There are several reasons for dizziness and vomiting in the morning: 1. Women of childbearing age and common women with early pregnancy reactions may experience morning dizziness accompanied by nausea and vomiting. 2. The clinical symptoms of dizziness and vomiting may occur when there is an imbalance in the ratio of ventilation to blood flow due to high partial pressure of carbon dioxide and low partial pressure of oxygen.4 The above symptoms may also occur when there is a disturbance in the plant nervous function caused by poor rest or sleep the previous day.5 The clinical symptoms of dizziness and vomiting may also occur when waking up in the morning due to precursors such as hypotension or hypoglycemia.