Hello and thank you for using HCM.I carefully read your question and I understand your concern.I will try to explain you something and give you my opinion. 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. Usaly hypertension does not give any symtoms but left untreated he slowly modifies the heart. According to heart rhythm, the normal rate is between 50-100 beat for minute.When it exceed 100 we talk about sinus tachycardia. This might have different causes to simple emotional stress, physical activity, coffee consumption or pathologys like anamia, hyperthyroidism. So if we diagnose hypertension and rhythm issue we have to find tha cause and of course treat them. If you treat dhe hypertension than you have nothing to worry. If I was your treating doctor I will recommend some examination like an electrocardiogram, a cardiac echo, a full blood analyze, a holter rhythm and pressure monitoring. This gives a beter view how to treat the problem, medicaly or not.But as you catch values up to 170 I think medical treatment is necessary. Hope I was helpful.Wish you good health. Best regards.