Ecg heart anxiety. U plz help me out?

Hlo I think I am suffering from angina. even if I stand for 5 minutes or walk for few minutes my chest starts hurting very bad Typical angina- pressure like squeezing radiating to left arm, jaw etc... I read this is stable angina but plz note even on rest when heart rate is below 80 chest pain epiaode occurs I had tmt done in November which was negative My doctor ruled out heart disease But I am still worried. To seek assurance I have developed habit of getting ecg done every week Which is always normal... I am unable to do anything except sitting n lying on bed due to fear of chest pain and angina Can u plz help me out? My doctor said after tmt we do angiography but invasive one has own risks n CT one exposes to radiation n there's no need of them in my case but I am living in fear every day