It depends on how high is your pressure. If you have the upper pressure < 160, you may not feel any problem. You may feel headache, dizzy, nausea
, or have visual problem when your upper pressure is above 160. Of course, this number is not absolute, people may not feel anything even theirBP is above 190! And this the problem, since most people don't have any symptom, they refuse to take medicine, but they don't know they are at risk of stroke
, heart attack
, or kidney
failure. So you do need to take medications even you don't have any symptoms.