I'm 57 years of age and have been taking ramipril for the last 12 months. Over the past 4 months, through diet and exercise I have lost just over 30lbs and now weigh 215lbs ( I'm 6 ft tall ) I've been experiencing for some weeks, quite pronounced dizzy spells when I stand up too quickly. I tried to see the doctor, but ended up seeing the practice nurse instead, who took my blood pressure, pronounced it perfect at 120 over 80, and sent me on my way.  I'm wondering if my blood pressure will drop too low as I get fitter and slimmer ( I plan to lose another 20 - 30lbs ) or if this ramipril masks your true blood pressure. Should I insist on seeing the doctor ?