question: i am 56 and in great health.  i have occassionaly low grad headaches that are not getting worse.  i also have a pattern of erectile dysfunction that seems to have started in the last 2 years with these headaches.  i get dizzy when standing especially working in the heat.  i also have low blood pressure like 108/65 at the dr office.  i do take a light dose of Benicar.  i am suspecting that all of my symptoms are from too low blood pressure.  your thoughts?