Surprisingly, though, an AARP-sponsored poll suggests people are starting to settle on a number to define old.. In 1974, nearly half of those polled said that age depends on a person's health or some other factor. By 2004, only 5 percent said that. People now believe old age sets in between 60 and 69, the results showed. Some might argue senior and old are totally different terms.
Hearing a heartbeat in your ears can indicate a hardening of the blood vessels in the neck. In this video, Dave Salley, MD, an ear, nose and throat specialist at Chippenham & Johnston-Willis Hospitals, discusses what other noises you might hear, and what they mean.
Do you have it in both ears, or just one? I believe that it could have to do with the fact that your ear (or ears) are already injured due to the tinnitus, and are sensitive to the sound of blood rushing within your body. I'll admit that I have this sound, too, in my right ear only. I had tinnitus for at least 25 years in my right ear (mild), and then mine got worse after taking a blood pressure drug. That's when I began hearing the pulsating sound. It does sound like you described, but yours seems to be very mild compared to mine.