Patients suddenly experience dizziness, nausea and vomiting in the morning, there may be several reasons: 1, sometimes hypertension, hypotension or various cardiovascular and cerebrovascular diseases, infections, hypoglycemia and so on can lead to the patient to have dizziness, nausea, want to vomit symptoms. 2, patients who have the presence of cerebral vasospasm or vestibular organ disease can also lead to the patient suddenly appearing dizziness, nausea, want to vomit symptoms, such as Meniere’s disease. If the patient has a history of recurrent dizziness, accompanied by tinnitus and stuffiness in the ears, the possibility of Meniere’s disease should be considered. If the patient has a history of upper respiratory tract infection within 2 weeks of the onset of the disease, and suddenly develops dizziness, nausea, and vomiting in the morning, consider vestibular neuronitis.3. If the patient’s head is in a specific position, and the symptoms appear and resolve rapidly, consider otolithiasis.