For people above the age of 15 years, tachycardia is a resting heart rate of 100 or higher. So, with 87 you do not fall in the category or person with tachycardia.
With a better physical condition and weight loss, your hr could possibly get lower.
I wonder if your doctor described the betablocker for your heart rate. Did he comment on the left atrial enlargement?
Thanks again. No he said apart from the heartbeat i'm healthy and he wants me to take beta blockers to slow my heart rate down to 60. here's hoping the other doc disagrees.