Hello and thank you for using HCM.I carefully read your question and I understand your concern.You shoud not worry. I ll try to explain you something and give you my opinion. You should know that we talk about hypertension if we have mean value that exceeds 140 / 90 mmHg.A person might have high value during emotional and physical strees so its mandatory to judge on mean values. Hypertension is divided into two groups, Essential and secondary hypertension. Essential hypertension is a chronic disease, usauly in older ages.It has not a definite cause and it should be treated all live long. Secondary hypertension is common in younger ages and it means that it has a secondary couse of it.This might be a renal disease, an endocrine problem or a cardiovascular disease. A hypertensive crisis can give symtoms like headache, blurred vision, dizziness, nausea but this usauly happens if blood pressure is over 180 mmHg. So , if I was your treating doctor I will recommend some examination like an electrocardiogram ,a cardiac echo to evaluate heart function and walls, a full blood analyze and the most important one holter blood pressure monitoring to evaluate your values during day and night. After all this we can better judge what is the problem and how to treat it. Hope I was helpfull. Best regards.