I suddenly feel dizzy and want to faint

Many things often happen in a flash, catching people off guard when they happen, so everyone can keep a calm mind so that they can deal with things calmly. Some people have had poor health since childhood, and dizziness and headaches are common occurrences, but no disease can be diagnosed. Suddenly feeling dizzy and want to faint_What are the reasons for headache and fainting? Read the following content to find out.

1. Overview

During college, I often felt like I was about to faint suddenly, especially in the summer. I was very worried about this, so I went to the hospital for a check-up. The doctor gave me a detailed explanation of the causes of the sudden dizziness. Now I would like to share with you why I sometimes feel like I am about to faint suddenly.

2. Why do you feel like fainting sometimes?

First: Rotational vertigo can be divided into two categories according to its cause: peripheral vertigo and central vertigo. Peripheral vertigo: refers to vertigo caused by lesions in the inner ear labyrinth or vestibular nerve. It is common in Meniere's disease (formerly Meniere's disease), labyrinthitis, drug-induced vertigo and vestibular neuritis. Central vertigo: refers to vertigo caused by lesions of the brainstem, cerebellum, cerebrum and spinal cord. It is common in vertebral-basilar artery insufficiency, intracranial tumors, intracranial infection, multiple sclerosis, vertigo epilepsy and traumatic vertigo.

Second: High blood viscosity. Hyperlipidemia, thrombocytosis, etc. can all cause high blood viscosity and slow blood flow, resulting in insufficient blood supply to the brain and symptoms such as fatigue, dizziness, and weakness. There are many reasons for high blood lipids, the most important of which is unreasonable diet structure. Patients with cerebral arteriosclerosis feel dizzy and often suffer from insomnia, tinnitus, emotional instability, forgetfulness, and numbness in the limbs. Cerebral arteriosclerosis reduces the inner diameter of blood vessels, reduces blood flow in the brain, causes insufficient blood and oxygen supply to the brain, and causes dizziness.

Third: Cervical spondylosis often causes tightness in the neck, limited flexibility, occasional pain, numbness and coldness in the fingers, and a feeling of heaviness. Cervical spondylosis compresses the cervical vertebral arteries, causing insufficient blood supply to the brain, which is the main cause of dizziness caused by this disease. In addition to dizziness, patients with hypertension often also experience discomfort such as headache, palpitations, irritability, tinnitus, and insomnia. In the early stages of coronary heart disease, some people may experience headaches, dizziness, weakness in the limbs, and difficulty concentrating. Dizziness is mainly caused by atherosclerosis of the coronary arteries of the heart, resulting in insufficient blood supply.

3. Notes

Dizziness may be quite common. Many patients with dizziness feel much better after lying down for a while and think that they are not seriously ill. However, this situation often occurs. Don’t delay. Go to the hospital in time, find out the cause, take medicine according to the doctor’s advice, and control your condition.