A.R.
I had to take propranolol on and off for years as a child and then once again as an adult. When I was a child it didn't scare me as much as the racing heart as an adult. I went several years without this problem and then it happened again as an adult but it seems to be under control now. I would wake up in the middle of the night with my heart going wild for no reason. I always have a presciption on hand as needed. I wouldn't worry too much I am 33 and doing just fine. I am very physically active, work full time and a mom and my ticker is still working.