Both primary and secondary hypertension do not show any symptoms in most cases. Even if the blood pressure level hits the highest mark, it can be hard to identify the signs without the help of a medical expert. In some cases, a person may experience frequent headaches, fatigue, vision problem and breathlessness. But there may be some indications to know you have secondary hypertension.
If your blood pressure doesn’t respond to medication it responded to previously
Your blood pressure is extremely high
No family history of high blood pressure
Not overweight or obese
Sudden onset of hypertension before age 30 or after 55