Angela, I take the same beta blocker. Mine is extended release and I take 75 mg. My blood pressure without the beta blocker has always been around 107/70. Low, right? Well, you can imagine how scared I was to take a blood pressure lowering medication. My blood pressure has been 94/66 now that I'm on the med. Try the medicine. Your doctor knows best, as you hinted to in your post. You and your doctor can always adjust the dosage as needed.
Lastly, lots of people do that with meds. They're afraid to take them for whatever reason. I'm normally in the anxiety forum but popped over here for the skipping beats issues. I share that symptom. Anyway, those of us who suffer from an anxiety disorder can totally relate to your fear of taking a new medicine. Hang in there!
Anxiety Disorder/Mitral Valve Prolapse
40 mg Prozac, Toprol 75 mg and occasionally Ativan