I saved my DH's life in spite of his denial he was having a heart attack. I heard him laboring to breathe in the middle of the night. I reached over an touched him...he was ice cold. I'd worked with 5 nurses and knew that HA's presented differently.
I literally had to trick him into chewing two aspirin...and get him in the car "to get checked out for the flu". Once we were on the road I called the ER and told them my DH was having a HA. He vehemently denied it, wanted to turn around and go home. He was missing his morning jog.
Once at the ER... he was checked out and immediately had a cath angiogram. Two major blockages in the widow maker. Two stents and 18 years later he's fine. The DR's said "we" caught it early and he sustained no damage. It took him a long time to realize he really did have a HA. Had he gone jogging...he would not have lived another hour.
"Stuff" happens. Now you know what you have and you can control many factors. I put DH on a very strict diet to lose weight and bring down his cholesterol. The China Study book is an excellent place to start. Cleveland Clinic in Ohio has an excellent program to reverse heart disease...or at least slow it down. Read "Forks over Knives". Really take a hard look at what you eat... Dr. Mark Hyman (Cleveland Clinic) and many other DR's say that food is medicine. Much of what is sold in grocery stores is poison. Literally chemicals.
I don't want to get on a soap box... I love an occasional DQ Blizzard... but even if you can't reverse the CAD...you can make changes that will help you.
I'd also get a second opinion from a CVI. Best wishes to you. CTS