Question: I have what I call these episodes in which I have a sudden thump in my chest and feel nauseauous for a few seconds, then my heart races anywhere from 125 to 151bpm for anywhere from 30 minutes to 2 hours. It feels like a light switch has been turned on in my chest and at the end of the episode it is like the light switch is turned off. I can literally feel my heart calm down in my chest. I've had an echo and stress echo. They were fine. I wore a 24hr holter. My cardiologist's nurse called a few days later to tell me that my cardiologist wanted me to start 25mg of metoprolol ER succinate because my average heart rate on the 24hr holter was 100, normal sinus rhythm. I thought an adult's heart rate was normally between 60-100, so why am I being put on medication? I have always had a bit of a fast heart rate and have always been told it was no big deal. I haven't had a heart attack in the past. My father had a valvular probelm when he was 65 but no heart attack and he is still alive at 85. No other family history of heart problems. I hate to take medicine and only wish to do so if it is really necessary. Why does she want to put me on this? Is it really necessary?

The report said epicodic sinus tachycardia with rates into the 140s with no evidence for significant ST abnormality. No evidence for atrial fibrillation or atrial flutter. Supraventricular ectopy in the form of isolated PACs and two runs of XXXXXXX The longest lasting 8 beats at a rate of 158 bpm. No significant ventricular ectopy. No high grade blocks or pauses. The night I wore the holter was my daughter's 16th birthday. There was a lot of excitement. The whole family was over and the adults were drinking. Would this cause the results?