I Am Experiencing A Pulsation In My Left Ear That

I am experiencing a pulsation in my left ear that has the rhythm of my heart beat. It seems to be getting louder. My blood pressure is 140/64, pulse 64, and I am an active 74 year old female. Tonight, the pulsation was so loud that it awaken me for a sleep. I have a sport's injury to my right arm that had been causing me aches and pains but that is now getting better. Should I ignore the ear pulsation as an emotional problem because of the stress I have been under due to the arm?