Our expert says:
Hi there Seth
Thank you for the comprehensive post, it helps when suggesting advice. There are a few possibilities, and I still think the most likely cause is gastric in origin - it could be a stomach ulcer or even a hiatus hernia. The only way to diagnose this is to do a gastroscopy. I would definitely suggest that you have some tests done to make sure that your heart is okay, such as ECG and cholesterol tests. Good luck and I hope that you feel better soon.
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