Regularly I used to experience heartbeat over 100 when in total rest (that rised to around 150 even with very slight walk, i.e. walking across room just a few steps) and lasted for 2/3 hours. My bp also used to stay 130+/80+ (and sometimes the systolic number was around 120 but only the diastolic was around 85). Sometimes I feel tired for no reason and pain in left arm, and leg pain even after little walk. And headache + shortness of breath after exercise (although this happens infrequently). So I had an ECG & this is my report. What may be the problem? & Is there anything I should do next?