My heart is constantly pounding these last few days. How do I know if that is simply due to anxiety or if it is to do with my BAV stenosis ? On echo two weeks ago my ejection fraction was 79% and my heart muscle very looked good, no hypertrophy - the valve area size is only 0.9, but I'm a thin woman. I'm due to have surgery at the beginning of January. How do I know if the pounding isn't due to the force my heart has to pump with to get the blood through the stenotic opening ? I don't have any pain or breathlessness or any other symptoms. But this pounding is making me feel very anxious - also blood pressure is slightly up, still within normal limits but around 120/80 which is higher than I usually have.