I Have Terrible Anxiety That Cause Heart Papltations. I Was

I have terrible anxiety that cause heart papltations. I was recently prescribed propnapotol 10mg. My heart palpitations are every day now for months and mostly in the morning when i first get up and through out some of day. I also have a medicine phobia. I am scared of any side effects. I have had panic attacks in past year. My question is, is the medicine the right one