Headache caused by hypertension mostly occurs in the back of the brain, accompanied by nausea and vomiting; If you often feel headache and nausea at the same time, this is the characteristic symptom of transformation to malignant hypertension.

First, everyone's blood pressure changes greatly in a day. Strictly speaking, people's blood pressure is different at every moment. It changes with the changes of people's psychological state, time, season and temperature, as well as the measured parts (arms or wrists) and body position (sitting or lying). Therefore, it is normal that the value of blood pressure measured each time is different. For example, due to tension and anxiety, the systolic blood pressure (i.e. high pressure) measured in the hospital is generally 25 mm Hg ~ 30 mm Hg (.. 4 kPa ~ 4.0 kPa) higher than that measured at home, and some even differ by 50 mm Hg (6.67 kPa).