clarity or advice please

[fenals]

Had an echocardiogram last january which found slightly impaired diastolic performance. Was told nothing to worry about. Had a NT-proBNP blood test with a score of 17. Due another echocardiogram this January.

Had a CT corocary angiogram in November 2021. Just got a letter from cardiology after a lot of chasing saying I have moderate coronary artery disease calcification and no significant stenosis. Nothing else said. No action, no prognosis, nothing.

Moderate means a score of 100 - 300. I don't know where I am on that scale.

I am extremely concerned. Is this a definite death sentence. Is it imminent.

Moderate says risk of a heart attack in 3 -5 years. Is that whether I make changes or not. Or if I carry on as I have been without changes.

Can I prevent a heart attack or is it inevitable now.

I am extremely worried