1.Significant vertigo
Suddenly, you feel that you are spinning around, unstable, stumbling, struggling to lift your feet, or even losing your balance and falling to the ground. This phenomenon is short-lived, only a few seconds or minutes, and is caused by ischemia in the brainstem and cerebellum, which affects the organs that control balance.
2.Severe headache
Compared with the general headache, it is sudden, has no obvious cause, and gradually changes from intermittent to persistent, and is accompanied by nausea and vomiting. This is caused by a sudden increase in pressure in the arteries of the brain, which stimulates the nociceptive receptors in the walls of the blood vessels, or even caused by a small crack and a small amount of bleeding from a brain aneurysm.
3.Numbness on one side
Suddenly feel numbness on one side of the face, arm, finger, especially ring finger numbness; tinnitus, can not understand the meaning of other people’s speech; mouth crooked to close, drooling. These are intracranial arterial blood supply is insufficient, the brain ischemia, hypoxia performance.
4.Frequent choking and coughing
Choking and coughing occurs during drinking or eating. This is due to cerebral ischemia so that the swallowing nerve center is affected, resulting in loss of pharyngeal sensation, dysreflexia, making water and food accidentally into the trachea.
5.One-eye blindness
Suddenly, one eye does not see clearly, or sees things in double shadows. There is a black spot in front of the eye, or even can not see anything, in a very short period of time that is back to normal. This is medically known as one-eye transient blackout, which is a sign of severe sclerosis and narrowing of blood vessels in the brain leading to retinal ischemia in the eye.
6.Drowsiness during the day
People feel very tired and feel that they can’t get enough sleep, even during the daytime is also sleepy obviously.
7.Yawning all the time
Yawning is a protective reaction of the human body, however, middle-aged and elderly people, especially those with cardiovascular diseases, have frequent yawning without any reason, which is a pathological reaction. According to a survey, about 70% of stroke patients have yawned uncontrollably about 1 week before the onset of stroke, regardless of the time and place.
8.Loss of grip strength
When the head is turned to the side while shaving, the arm suddenly loses its grip, causing the shaving tool to fall to the ground, sometimes accompanied by unclear speech, after 1 to 2 minutes completely back to normal. This is due to the twisting of the hardened carotid artery when turning the head, resulting in a lack of intracranial blood supply and triggering symptoms of transient cerebral ischemia. Although the recovery is quick, it is a sign that a stroke may occur at any time and anywhere.
9. Stiffness of the root of the tongue
Suddenly feel stiff at the root of the tongue, tongue swelling, difficulty in swallowing, unclear speech, check the tongue is not red and swollen phenomenon. This is due to the hardening of blood vessels, narrowing of the lumen, slow blood flow, and increased blood viscosity, resulting in poor circulation in the tongue veins and the accumulation of metabolic substances, which in turn stimulates the tongue nerve.
10.Nose bleeding
When the blood pressure keeps rising, the hardened and brittle nasal blood vessels cannot withstand the pressure and can rupture and bleed. This condition of the blood vessels in the nose indicates that there are similar changes in the blood vessels in the brain. A large number of cases have confirmed that hemorrhagic stroke occurs in about half of hypertensive patients 1 to 6 months after repeated nasal bleeding.