Occasion left arm pain & chest tightness

Dear Doctors, I was having occasional left arm pain which is raising my anxiety level. Today took an ecg while having arm pain and chest tightness. 6 months back took ecg,echo,tmt,chest x ray all comes out normal. Except High BP and borderline cholestrol. Having upper back pain and chest tightness for last 9 months. But till now my chest tightness and pain in chest is not gone, consulted 6 cardiologist till date and took 6 different ecgs till date. Wat is the cause of this issue. Not able to lead normal life all the time living with fear and anxiety, How to come out from this, whether I had any heart issues or psychological problem. Attaching ECG for reference, kindly chk and tell me anything to worry in it.