Sir ECG Taken During Routine Med Exam Showed Pulse As

sir ECG taken during routine med exam showed pulse as 56 and sinus bradicardiya with mild left axis deviation. next ECG showed pilse as 63. however puse taken manualy(from wrist) showed 72. BP was normal with 120/80. third time ECG was taken it showed pulse as 76 with sinus rythim. BP monitored for 24 hrs showed 120/80.2D echo was carried out and showed all recordings absolutely normal.TMT was done and showed 102% target acieved. good response to stress. holter test for 24 hrs was carried out and bradicardiya pulse, trachicardiya pulse showed zero(0).mean pule was 73. mean day pulse 76 and mean night 68. this was part of routine mrdical examinaton for serving officers of defence service. no chest complaint ever reported. diet is completely veg and no alcohol, no smoking. stressful job but keep playing sports lawn tennis and running.