I’ve had some of the same issues, and have determined that I have a histamine intolerance. One of the many conditions it can cause is reflux. So I’m trying to balance the fasttrack diet with a low histamine diet.
Slow cooked meats, leftover meats, and bone broth are all high in histamine. I’ve switched to meat broth, cooked less than 2 hrs, and immediately freezing any leftover meats.