While at work in September 2014, I lost vision of my left eye and had terrible feeling of “heat” all over the left side of my body.

The ER ophthalmologist directed me to cardiology for a vascular problem.

A week later, I could not walk 100 meters (325 feet) without crushing chest pain and shortness of breath.

I was no longer functional. Making my bed was all I could do in a whole day. I was no longer an active 54-year-old.

First came the headaches – worse than migraines – then the shortness of breath and having to lay down after crossing the room.

Five months after my symptoms began, I was diagnosed with a 99% blockage in my LAD and 99% blockage in an artery branch off that.

I was stented and, in doing so, they jailed an artery. I was given Metoprolol and I got worse.

I underwent another Angiogram, and all was fine, so they changed my medication and I began to use my Nitro more.

I consider myself one of the lucky ones.

I was a runner, triathlete, skier, scuba diver, etc. before my problems got severe enough to seek medical help.

Most doctors took my health decline seriously from the start.

Later, it was not uncommon for doctors who were unaware of my athletic endeavours to assume my subsequent lack of fitness was the cause of my condition rather than the result.