Why do I suddenly feel dizzy, nauseous and vomit?

Although people's living standards have improved, because people do not pay attention to the quality of life and their own bodies, many people suffer from various diseases, such as sudden dizziness, nausea and vomiting. Why does this phenomenon occur? What causes sudden dizziness, nausea and vomiting? Let us take a detailed look at this issue. Friends, if you also have this phenomenon, you might as well take a closer look at the introduction of the article.

Sudden dizziness, nausea and vomiting are very common. Some people are fine just now, but suddenly feel dizzy, nausea and vomiting; some people will feel nausea and vomiting after waking up from sleep. So why do these symptoms occur? What causes it? Let's take a look at the detailed introduction.

1. What causes sudden dizziness, nausea and vomiting?

1. The physiological reason for sudden dizziness, nausea and vomiting is that various reasons lead to chronic and widespread blood supply deficiency in the brain, causing cerebral ischemia and hypoxia, resulting in a series of clinical manifestations of brain dysfunction. Most of the sudden dizziness, nausea and vomiting are caused by Meniere's syndrome.

2. Dizziness, nausea and vomiting mostly occur in the elderly, mainly because of malnutrition, which can easily lead to anemia. Therefore, the elderly should actively prevent and treat anemia. Pay attention to dietary health, do not be picky about food, eat more fresh vegetables and fruits, maintain the trace elements needed by the human body, and achieve a balanced nutrition. Improve the quality of sleep. If you experience frequent dizziness, you should pay attention to going to bed on time and ensure adequate sleep time. Maintaining a good attitude is very important for patients with hypertension. Emotional fluctuations can easily cause drastic changes in blood pressure, which can easily cause dizziness. Therefore, you must maintain a calm attitude when facing people and things. Recommended reading: What are the symptoms of vomiting and the dietary treatment methods for vomiting

2. Why do I feel dizzy and nauseous when I wake up from sleep?

1. Frequent dizziness, sometimes accompanied by nausea and vomiting, especially when getting up or turning the head. Patients often think they have "hyperlipidemia" or "cerebral vascular sclerosis", but various examinations show no pathological changes in the cerebral blood vessels. In fact, these people may be suffering from cervical spondylosis. The symptoms of this type of cervical spondylosis include dizziness and nausea, as well as headache, tinnitus, paroxysmal blurred vision, palpitations, a foreign body sensation in the throat, and dry nose.

2. Vertigo attacks are often related to neck movements. Medical scientists call this vertigo caused by cervical spondylosis "cervical vertigo." If an X-ray is taken, it can be found that the cervical vertebrae are deformed, the gaps between the vertebrae are narrowed, and the uncovertebral joints are significantly proliferated. If vertebral artery angiography or B-ultrasound examination is performed, it can be found that the blood flow in the vertebral artery is not smooth.

3. How are dizziness and nausea related to cervical spondylosis? It turns out that there are two blood vessels called "vertebral arteries" in the neck that pass through both sides of the cervical vertebrae and are responsible for supplying blood to the brain. If the cervical vertebrae are deformed, the uncovertebral joints proliferate, or the vertebrae are unstable relative to each other, the cervical "sympathetic nerves" will be stimulated, causing spasms in the vertebral artery walls, resulting in poor blood flow in the vertebral arteries and insufficient blood supply to the brain, leading to dizziness.

4. Cervical cerebrovascular disease: Among the nearly 1 million cerebrovascular patients in the country each year, 26% are induced by cervical spondylosis. This is due to compression of the vertebral basilar artery, which causes insufficient blood supply to the brain. If this state is maintained for a long time, dizziness, numbness of the hands and feet, unsteady walking, and even cerebral thrombosis and cerebral infarction may occur. Some patients may suffer from hemiplegia as a result. If cervical spondylosis is treated promptly, it will not deteriorate into serious consequences such as stroke and hemiplegia. Recommended reading: What are the symptoms of vomiting and the dietary treatment methods for vomiting

How do dizziness and vertigo occur?

1. Related to our inner ear and brain stem. There is a structure in the inner ear called the vestibule, which is composed of three semicircular canals, the anterior, lateral, and posterior, the ampullar ridge, the utricle, etc. Lymph flows in the semicircular canals. The cells at the ends of the vestibular nerve sense the spatial position of the body and transmit the information to the brain, entering the vestibular nucleus of the brainstem. Pathologies of the vestibule and vestibular nerve nuclei, such as inflammation, ischemia, and compression by tumor cysts, can cause illusions of position sense and lead to dizziness.

2. The vestibular nucleus is connected to the vagus nerve, and vestibular nerve lesions will inevitably lead to symptoms of the vagus nerve. As for the visual rotation caused by the vertigo board, it is because the vestibule has a direct connection with the eye muscles, and the vestibular nucleus is connected with the oculomotor, trochlear, and abducens nerve nuclei. Therefore, when there is a vestibular lesion or a vestibular nerve nucleus lesion, vertigo, visual rotation, and reluctance to open the eyes will occur.

3. Dizziness is related to our vision. We can see the position of objects through our eyes. When there is an error in our vision, an illusion of the object's position will appear, leading to dizziness. For example, refractive errors, optic neuritis, visual cortex ischemia, and even cortical blindness caused by visual cortex damage.

4. It is related to the body's proprioception. Proprioception is the body's neural sensation of the spatial position of its own joints. For example, when we close our eyes, we will know the posture and position of our palms. When proprioception is impaired, the human body does not know its own position, which causes dizziness when sitting and inability to maintain the correct posture. Recommended reading: Chinese massage to prevent motion sickness and vomiting

The above article gives a detailed introduction to some of the reasons for sudden dizziness, nausea and vomiting. I believe that after reading the article, all friends have understood it. I hope everyone can understand the knowledge in these aspects, pay more attention to their bodies, maintain their health, and do a good job in preventing various diseases.