Thanks for writing to us.
1. Our Blood pressure (BP) is continuously changing and is effected by increase in physical and mental activity. Hence it will be higher with increased stress
(mental/physical) and less in periods of calmness/ sleep/relaxation. if you have more than 3 readings of more than 140/90 mmHg over a period of weeks in relaxed state, then you do have high blood pressure
and you must see the doctor.
2. Nope, the thinking in last 10-15 years has changed and systolic BP is more important than diastolic, but isolated diastolic hypertension
(with normal systolic BP ) can also not be discarded.
3. It is unfortunate that your father had a fatal heart condition but neither they are hereditary in most cases nor this much of blood pressure can cause it. Relax.
Feel free to discuss more.