Hello, I recently got echo, tmt done , the reports look normal. However, at times when sleeping or working i can feel minor palpitations or discomfort in chest. I have a hand held ECG device and if i test it shows left bundle branch block, abnormal ECG. Have consulted previously as well, doctor said it's normal and suggested beta blocker tablets. The number of times discomfort or palpitations has reduced but still there. Should I take any additional test?