Thanks for the quiery for HCM.
I have the feeling that you answered your own questions. I am sure you
stopped drinking coffee for a few days or cut back. Restart the Protonix
For immediate relief you can always take liquid antacid
Plus or Riopan. You can take a tablespoon every four to six hours
for a day or two , till the protonix kicks in. Avoid spicy, greasy or fried
foods for a few days till your stomach settles down.
I wish you well.