Consistency is what counts..Meds taken at the same time, every day..
You gotta sleep..
Are you volume depleted?
If you are talking about yourself, and you are on blood pressure meds at your age, this is something you should be discussing with your doctor. Actually, anyone at any age who is on medication for any disorder should address all questions relating to the medication to either a doctor or a pharmacist.
Try it. It depends on how you feel. Doctors aren't always right. :)