Oh sorry to hear about ur Health problem. Well Sinus Tachycardia as just is not a major problem.. The problem arises when it increases.Tacchycardia means increase in heart beat. Sinus is physiological may associated with ur breathing pattern. However it would be good enough if you do your 2 D echo and stress test and also rule out other causes of breathlessness. A good History and Examination will help us to arrive at a proper diagnosis. Do visit our Clinic for assistance and a speedy recovery.

Hello, I understand your feeling, This sinus tachycardia is not an big problem as your doctor told you already. Since you have already given your opinion regarding the usage of medication. For time being this does not need any medications or so. But you need to do workout to keep your heart beat under your control such as doing brisk walk, doing workouts on cardio equipments. This will help you jeep your beat under control. This is all needed nothing else. Thank you