Tachycardia of 102-116 for ten straight days no other symptoms---dangerous? wearing patch monitor. on no medications after two years on toprol (metoprolol).

Tachycardia: Sinus tachycardia without other symptoms including low blood pressure or chest pain or shortness of breath while on a beta blocker still needs investigation. This could represent cardiac ischemia.

Could be: A tachycardia of that magnitude that is persistent at your age is strongly suggestive of an arrhythmia or cardiac irregularity more likely due to atrial fibrillation. You need to see your doctor as this put you at risk for stroke even if you have no symptoms. Also you need an adjustment of your medication to control your heart rate.