Hi April, I am sorry you are having the chest pains. Hopefully the medicine will help slow your rapid heartrate down. That might be what is causing the chest pains. I had the pains when I was hyper too. At my age it would have been easy to have a heartattack.
I have heard of Inderal LA. I took toprol xl 100mg. a day when I was hyper.
Hang in there hon. I think you said your surgery is January 3 didn't you?