Coronary calcium score

Started having health anxiety during the pandemic and has gotten really bad. Had a coronary calcium score test done and came back 784. Stress test , echo, heart monitor all good nothing major . Can’t get out of my head that I can have a Heart attack or stroke at any given time. I do get a lot of palpitations and fluttering so I start to obsess and think it is going to happen. The doctor suggested I get an angiogram done because of my anxiety level to see the percentage of plaque. I am not sure what to do . Looking for advice