I went to another cardiologist who just listened to my heart and said that I have mitral valve prolapse. He did NOT do an echo to confirm it, he only did an EKG which showed sinus tach at 140 BPM because I was really nervous to be there. I am very worried to even walk around my house because I have become so afriad to feel my heart beat fast. I do not have chest pain or anything just feels fast and scary. The echo would suggest that you do not have any significant valve problem, as there is no leakage, thus the valve is probably not the source of your symptoms.
Anxiety can raise the heart rate.
The increase with standing and minimal exertion seems inappropriate, and you could consider getting this evaluated further by a cardiac electrophysiologist, the sort of cardiologists who specialize in this area. Calcium supplements would not raise your heart rate. Information contained within this forum is intended solely for general educational purposes and is not intended nor implied to be a substitute for professional medical advice relative to your specific medical condition or question. Only your physician can provide specific diagnoses and therapies. All rights reserved.