I am an eighty year old male who exercises regularly, non smoker, no alcohol, good nutrition and sleep well. I see my doctor for annual physical only and have been taking prescriptive medication to control elevated blood pressure. The Meds I have been taking (for past 15 years) include hydrochlorothiazide (25mg) and Simvastatin/proscor (5mg). In recent months I occasionally experience dizziness following an hour or more of moderate exercise. I am aware of the side effects of each, and although I take each med approximately 12 hours apart I am wondering if the long term effect, coupled with advancing age could be a factor in my experiencing periods of light headedness in a standing position. Thank you for your consultation.