Hello Sir/Ma'am,      I was feeling higher heart rate and palpitations 1 month ago. I went to cardiologist nd he performed ECG and Chest X-ray everything was normal and heart rate on ECG was 84. He said to me that you are good nothing to worry you are only having stress and anxiety and prescribed me Inderal 40mg 1/2 morning and 1/2 at night clonazepam 0.5 at night and sompraz D daily before breakfast i took that medication for 20 days and reduced inderal after 20 days  to 10 mg daliy at night till now. I was feeling good resting heart rate was 60-80 while laying or sitting while doing a little activity it was 85-105. last night suddenly i felt palpitations ten minutes after taking inderal 10 mg i counted my pulse and it was 110-130 it became high for 1 and half hour after that it became normal  to 70-80 and i felt sleepy at 1 AM. Should i have to worry about this or this is only anxiety?