mitral regurgitation/rapid heart/auto immune disease

SandyGirl

I am in need of help. I have gone from doctor to doctor trying to put all the peices together. I went to a cardiologist due to a rapid heart rate for no known reason. My EKG presented my resting heart rate was 126bpm. The doctor put me on Toprol XL to slow down the heart rate, which it has. I went back a week later for an Echo Cardiogram which showed I have Mitral Valve Regugitation. The scary part is I have been having a very hard time breathing, I can't get full breaths. I still don't know what is causing the rapid heart rate. I am going to a pulmonary Dr this week, but I have been having symptoms if an auto immune disease which has yet to show its face... The blood work so far has been slightly abnormal but not abnormal enough to make a diagnosis. My fear is pulmonary hypertension. I have been having chronic cold hands & feet. Unbearable fatigue, and muscle & joint pain that could make you cry. I can't even hold the blow dryer over my head without taking a break. Anyone have the same? What does rapid heart rate mean if blood pressure is normal?