I felt fine. Never any symptoms. The calcium scan surprised both me and my doctor. I had an angiogram which revealed some narrowing of one artery (doctor said "this isn't too bad") and another blockage in a different artery that wasn't an issue because there were other arteries literally bypassing it and supplying blood to that part of my heart. I also take a statin which I assume has drastically lowered my LDL cholesterol by now.

I still feel fine and I have no trouble running. I do pay more attention to my diet.

There's a lot they can do with hearts now. It doesn't have to be perfect for it to do its job. Don't be afraid of taking a statin if needed. It's like taking an aspirin for me; I don't even notice it.