If your heartburn lasts more than 24 hours, please, please, PLEASE go see a doctor.
I did not. I fought unrelenting heartburn for 5 days. In fairness, it did start 3 days after Thanksgiving, and I DID have the extra plate of sweet potatoes. Antacids did nothing, Pepto did nothing.
On the 5th day, the burning pain moved into my upper arms, which I did not know was a thing, and in the center of my chest it felt like I had a chunk of rock, pulling down on all my innards.
Advice nurse sent me to the ER, ER used a simple blood test to confirm the heart attack, but by day 5 the damage was done and the only fix was full blown open heart surgery.
Doc explained the heavy feeling was my heart only pumping out 30% of what it should be, and that's right on the line of walking around, talking to people and no longer walking around, talking to people.