i'm a 37 yo male and a couple of months ago I went into to the ER for
what I thought were hard attack symptoms. tightness in chest
primarily, no pain, just tightness. They were happening when I was
resting, even laying in bed rather than when I was exerting myself. No
issues with my breathing during these episodes. Well after chest
xrays, EKG's, cardiac enzyme tests among other things nothing was
found. A few day later I went for a Nuclear Stress Test everything
checked out fine there to. My GP suspected maybe some sort of viral
infection, maybe of the heart itself but after extensive blood tests
nothing was found. My GP suspects it may have been anxiety related. I
still occasionally get it a bit ignore it as its not really more than
a little annoying. I have low cholesterol of 157 and I don't eat hight
fat or fried food at all really. I am average weight with a BMI of
maybe 17-18%. I am sedentary for the most part and do not exercise.
Well I decided it was time for me to start so I bought a Gazelle, the
machine that is basically similar to a ski machine. I'm sure you;ve
seen it advertised. Well anyway for the last three day I have started
using it. I did about 20 minutes  the first and second day and about
30 minutes today. I felt fine while doing it but now a half hour later
I am feeling a tightness across my ches. It seems to be muscular and
is a bit different than the previous tightness that I was having.
Mostly over and around my upper pectoral mucles and over my collarbone
into the lower neck area and shoulders. I suspect its from the upper
body movement of the skier working out my chest and shoulder muscles.
Remember I've just started exercising so these repetitive movements
are new to my upper body. I did not feel out of breath during the
exercise or even now. Just the tightness afterwards. Wanted to hear
peoples opinions.

Thanks in advance,
Adam