Poor sleep will not cause vomiting in patients, but patients in severe sleep deprivation may cause dizziness and nausea, not necessarily vomiting. Patients with poor sleep will cause a long-term decrease in resistance, dull and lusterless skin, and daily functional activities will be affected. Patients will have poor concentration, slower reactions, memory loss, and the brain and body are in a state of fatigue, and will have these manifestations. Patients who do not sleep well may also have dizziness, but they will not experience violent vertigo, which will not cause patients to have vomiting symptoms. If the patient vomits, the cause may be caused by cerebrovascular disease, or it may be caused by a disease of the digestive tract itself, the exact cause of which should be clarified through examination at the hospital.