Also, when you pulled the
chest muscle, remember too that your
chest muscles are way above your heart..so that pain/tenseness was not your heart..the heart is under the rib cage..in separate area...but I know at the time, it would seem as though it might be affecting your heart..
I think if you can really remind yourself, that you took a step for finding out anyway about your heart, and it came back GOOD, that will reassure you....