I agree with the suggestion of seeing a neurologist, there is also the possibility of orthostatic hypotension which is when you have a change in position and your blood pressure drops. If you take any meds not just ones for hypertension, they can also affect blood pressure which would be my first guess as to the reason for falling if you don't feel dizzy and do not blank out. After that, as I said I agreed with the person who said a neurologist since the brain sends the signals (tells it) to the body to do the things it needs to do. Since we talked about the meds that affect the heart and pump blood to the whole body with the oxygen and nutrients for everything it needs to do for us to stay alive that pretty much covers it all. Well, I did not take much biology but that is my simplistic way of looking at how our bodies work. This is also why we need the doctors at 75 our bodies also change I am 70 now and how my body processes everything changes, and falling is more serious than going to see an audiologist if you can hear the doctor's receptionist when he asks for your insurance card. Living further away from major medical centers/schools ( unless you are near Dartmouth) is difficult sometimes just in transportation, but checking out researching with different symptoms like at Mayoclinic.org can give ideas along with these good ones too because we give ones that those sites can not always come up with. Hope this gives some ideas, Take care!