Hi doctor! I often feel nervous, chest tightness and feel a little short of breath. When I went to the doctor, my heart rate was 94 beats/min. So the doctor asked me, with my current heart rate, what medicine should I take to help lower my heart rate?

I have a daughter born in 2000, the history of asthma from 6 years old to 12 years old is gone (hospital treatment). Now that the Covid-19 vaccine has been administered twice, the heart rate is above 120 beats / min, the blood pressure is normal. So the doctor asked me why the high heart rate when I was vaccinated against Covid

Hello doctor, I'm 49 years old, my heart rate usually fluctuates from 90-100. Doctor let me ask if the heart rate fluctuates from 90-100? Should I take any medicine to lower my heart rate? Thank you.