Dizziness and vomiting may be caused by emotional stimulation, cerebrovascular disease and gastroenteritis. 1. Emotional stimulation: Emotional stimulation can lead to vasospasm in the brain, which can cause dizziness and vomiting, and after vomiting and then resting a little bit, the symptoms will be relieved, and the patient will feel more comfortable. 2. Cerebrovascular disease: Cerebrovascular disease can lead to intracranial hypertension, headache, dizziness, nausea and vomiting symptoms. After vomiting, the intracranial hypertension will be reduced and the patient will feel relieved. 3. Gastroenteritis: Poor eating habits or consumption of unclean food can stimulate inflammation of the gastrointestinal tract, which can lead to fever, headache and vomiting. After vomiting, the irritation of the gastrointestinal tract is reduced and the symptoms can be partially relieved. When patients experience these symptoms, it is recommended that they go to the hospital for examination and treatment under the guidance of a doctor.