If your wife have heartburn, really painful one she will feel chest pain. I get that a lot especially on my left side until it's hard to move. Tell her not to eat 3 hrs before bed time and avoid all spicy, oily foods
It is better to meet a doctor.
I have see doctor as well but there say is normal but when I ask the doctor y she chest pain everyday and so painful the answer that the doctor give still same ....
ivan kuen