Praise the Lord!

So... Bloodwork, stress test, imaging, echo, abdominal ultrasound, and lots of poking and proding later... It is determined that Jeff's heart is that of a 30 year olds.

He did not have a heart attack. In fact nothing of the pains were with the heart.

They are guessing that what happened was due to an old injury from when he was a kid that caused a lot of scar tissue across the left shoulder and chest wall.