I will say that night shift is very hard on the human body. I have had to work them alot in my line of work and it has always seemed to aggitate my heart. I will tell you however, I think the big culprit could be the viagra & cialis. Those medications are very hard on the body.
I ran a code on a co-worker about
10 yrs ago. He was 50 yrs old and pretty healthy. A hard worker. He was a bit of a player at his age and was using the meds to keep up with his several girlfriends. One day at work he just dropped. He had a major MI. I did CPR on him, along with other measures by the medics and hospital staff. He didnt make it.
When I had talked to his family several weeks later they said the report came back that his heart attack was caused by the Viagra & cialis that he was taking together and frequently. So just be careful with those meds.
My husband needed viagra when we got together, he is 15 years older than me. They had put him on a new blood pressure med that killed his sex drive. When I found out he was using viagra I made him stop. I said we would figure out other ways to enhance things to help him, I did not want to subject himself to the risks. His body got used to the meds and we got creative. He has not needed the viagra in three years now.
I hope you get this resolved and start to feel better. I was diagnosed with Cardiomyopathy years ago and I know what it is like to live with cardiac issues. I also had chest pains and went through a stress test and ecocardiogram last year, like you, everything came back normal which is so frustrating, but my doc chalked it up to some stress I was going through. I still have some chest pains and I'm just chalking it up to the fact that I turned 40 and I'm falling apart
So much for the joys of entering the Golden Years! LOL