Dizziness, yawning and wanting to vomit may be related to excessive fatigue, or it may be caused by insufficient cerebral blood supply, high blood pressure and other reasons. 1. Excessive fatigue: If you have been engaged in heavy physical labor for a long time in the near future, frequent mental labor, or regularly staying up late, it is easy to cause the body and brain to be in a state of extreme fatigue, which is likely to cause cerebral nerve dysfunction, and then dizziness, yawning, wanting to vomit and other symptoms may occur. 2. Insufficient cerebral blood supply: commonly found in patients with cerebral arteriosclerosis and hyperlipidemia, due to blood viscosity and narrowing of blood vessel lumen, resulting in slowing down of blood flow, leading to ischemia and hypoxia of brain tissues, which may cause dizziness, yawning and vomiting. 3. Hypertension: If hypertensive patients have long time blood pressure control is not good, frequent fluctuations in blood pressure rise, it is likely to lead to lack of oxygen in the brain, which may cause dizziness, yawning, want to vomit symptoms, may also be accompanied by light-headedness, headache and other symptoms. Dizziness, yawning and vomiting, if the symptoms cannot be relieved by resting, it is recommended to consult a doctor as soon as possible to diagnose the causative factors and then give targeted treatment.