Some patients may be asymptomatic, while others may have symptoms such as dizziness, tinnitus, headache, and fatigue. 1. High pressure is systolic blood pressure, its normal range is between 90-139mmHg, low pressure is diastolic blood pressure, its normal range is between 60-89mmHg, diastolic blood pressure is greater than or equal to 90mmHg is considered to be high diastolic blood pressure. 2. Some patients with diastolic blood pressure increase is not obvious, the body does not have any abnormal symptoms, some patients with diastolic blood pressure increase is more obvious, there may be dizziness, tinnitus, headache, fatigue, bloating, insomnia, neck stiffness, tightness in the chest, shortness of breath and other symptoms, the specific symptoms vary from person to person, after all, the degree of disease is different from one person to another. 3. Some patients with high diastolic blood pressure combined with damage to the heart, brain, kidneys, retina and other target organs, there will be corresponding symptoms, such as induced myocardial ischemia, there will be pain in the anterior region of the heart, shortness of breath, dyspnea and other symptoms. It is recommended to go to the hospital for examination, to determine whether there is high blood pressure through measurement, and then take antihypertensive drugs under the guidance of the doctor.