Hello Sir/Madam, I am experiencing some pain in chest, sometimes at left side and sometimes at middle. I am walking daily for 5 KM, but there is no pain while walking. I have undergone TMT, Echo, ECG 1.5 years back. All reports were normal. After that I have done almost 4 ECG and all came normal. Attached the recent ECG. Is there anything else to confirm, that this is non cardiac pain. The pain Mostly comes when I am seating.