Hello and welcome
Diastolic BP in lower side is not a matter of concern but it cannot be more than 90 in any means in hypertensive patients like you who is on medications. If you have any signs like vertigo
, sweating than you needs treatment for hypo-tension may be by changing the medicine. Otherwise you need not to worry and continue your normal life style. One thing I would like to tell you do not measure your BP regularly 3-4 times a day, measure it 3-4 times a week.
Every reading is different in different time so it adds up to your stress
and nothing else. Feel free to consult your cardiologist if you have any symptoms describe above.