Thanks for all your prayers.
As of this morning his nuclear stress test was good. The doctor said that they are ruling out a heart attack at this time. He is to have more testing as to find out what he did have. They have put him on hypertensive medication and Nexium.
My oldest brother has severe esophageal spasms, which he thinks is what my youngest brother had. My next to oldest brother has had heart attacks, coronary artery bypass grafting with stents, and severe esophageal spasms. So that may be what the younger had. My family history on my dad's side is really a minefield for GERD. We all take "The Purple Pill" daily. So I guess my youngest brother has grown up enough to join the older siblings in taking the meds too. Our family is also a minefield for heart problems too, so I was really concerned.
Thanks again for all your prayers, as I breathe a big sigh of relief.