Dizziness is the #1 reason people visit their doctors. as to meds for your blood pressure their are revised guidelines. For people over 60, meds are now not considered the first line of defense unless systolic BP (the top number) is over 150. If you're younger than 60, I believe the maximum systolic is lower for people less than 60 (140). At any rate it may be because of your age and the magnitude of your BP that explains why you are not on meds.