I have been on a beta blocker 43 yrs. Beta blockers are not dangerous… not sure where you got that info. Don’t listen to anyone but your doctor. Beta blockers have been safely taken by people with arrhythmias for decades. It is a widely prescribed drug for stage fright..actors take it. There are numerous medical conditions that beta blockers are used for, not just cardiac issues. Try it.. you might feel better and won’t have tachycardias that are frightening for all of us. Hope this info helps you.