Hello and thank you for using HCM. I carefully read your question and I understand your concern. I will try to explain and give you my opinion. There are different reasons that might cause increased heart beats. Physical or emotional stress, caffeine products might cause increased heart frequency so its mandatory to avoid them. All sow, there are different pathology s like anemia, thyroid gland problems like hyperthyroidism that might be the cause of fast heart beats. We talk about hypertension if we have mean values exeeding 140/90 mmHg. We divide it in two groups, essential hypertension without identifiable cause and secondary hypertension meaning that it is a secondary disease cousin it like renal disease, endocrine problems ect. This high frequencies and blood pressures might be the reason that you feel a little down. So my opinion is that we have to do a full chek up. If i was your treating doctor i will ask to do a electrocardiogram, a cardiac echo to evaluate that previous murmur that you say and the pericardium again, a rhythm and a blood pressure holter monitoring for 24 h to evaluate your real frequencies and pressures during day and night. All sow a blood analyze to exclude anemia, your thyroid hormones, your urinary cathecolamins and a abdominal echo to see the renal situation. After all this results we can have a full view and decide if we should treat this things or not. Hope I was helpful.Wish you good health. Best regards