Related to left side chest pain. Heart?

I have long history of chest pain, facing chest pain since last couple of years. But have done stress test and 2D echo couple of times in last 2 years and tests were normal every time. Last time I did stress test in Oct 2020 and it was normal. However I still facing chest pain, consulted good cardiologist and he is saying this is due to acidity. Actually I am having acidity since last 2-3 years. I am going through anxiety, depression and those medicines also going on.  Again since last 1 month my chest pain has increased specially during night while sitting and lying at night (though I don't lie down for 3hrs after dinner)  and nowadays I have also observed dizziness, cough and tiredness also(most of the Times these symptoms don't come togethe   Sometimes observed pain in left hand. Two months back did lipid profile test and every thing is normal(report attached). My current weight is 90 kg and height 5.5. Since last year I could lost only 2kg weight. Is my chest pain related to heart?