my resting heart rate is normaly around 60 to 70.....but for the last couple of months it has been falling into the lower 50's. i suffer from anxiety which i just started taking xanax for.( 1mg daily). i was concerned for my heart rate so i talked to my doctor. he told me it was just my anxiety and not to worry about it. a week later after being very tired for a few days straight and waking with my heart rate at 47 i went to the er. they ran every test that they could.... thyroid, supplement deficiency, ekg, checked my heart enzymes, x-ray, and a couple of others. all came back normal. all they could say is that i had sinus bradycardia. my question is even though my doc says i am fine and all the test come back normal, should i see a cardiologist just to make sure there is not a underline problem with my heart? i just think it is funny how all of a sudden my resting heart rate has dropped so much. thank you!!!