What are the side effects of having high blood pressure?

Risk of High B.P. Having high blood pressure puts you at risk for a heart attack, stroke, heart failure, chronic kidney disease, intracerebral hemorrhage, retinopathy etc. This is why a healthy well balanced diet, exercise, and antihypertensive medication (when needed) are vital to staying healthy.
Often none. Hypertension (HTN) is a silent killer. Patients usually have no symptoms. Sometimes patients experience headaches, blurred vision or chest discomfort. It is not unusual for HTN to be detected on a routine exam. Treatment is effective and lowers the risk of heart attack, stroke and death.

Related Questions

Is norvasic good medicine to lower high blood pressure? What are side effects?

Hypertension. Norvasc (amlodipine) is a very effective blood pressure medication. Side effects include lower extremity edema, headache and constipation.

Does high blood pressure medication cause nervous system side effects?

Yes. Many hbp meds cause sedation. It would be most unusual for them to make someone feel apprehensive. But for any given individual, most anything is possible, even though rare.