Talk to Psychiatry on Undiagnosed Heart Problem

Hi, I am facing heart issue from 4 years, visit many doctors but they all said that it's not heart, it's anxiety and panic disorder. I have done ECG many times, one time Echo 3 years ago, now 2 months ago I consult a cardialogiest consultant, He examine and said my heart is fine but for my assurety he suggest me for ETT test, that was also normal. But I don't understand if all my test are normal then why I feel uncomfortable, dizziness, shortness breath, rapid heart beat, with small physical workout. Whenever I trying to do workout, like pushups, jumping jacks, running, I feel sudden my heart stop and beat . But I can walk with 30 to 40 mins easily daily. Also i have fullness, acidity, gas problems, and was diagnosed h-pylori and got treatment. I attached my all test reports, check and please help me.