[QUESTION] Gmin7 chord gives my wife heartburn?

Let me preface this by saying I didn’t want to post this but my wife made me.

I picked up guitar as a quarantine hobby and have gotten quite good at it. I like to learn and play a new song every day, and so last week I learned “Hey There, Delilah.” I mastered it very quickly and decided to surprise my wife with it when she got home.

As soon as she entered the door, I started shredding and all was well until I got to the guitar solo, when she started to frown and ran into the bathroom. When she came out from vomiting, I asked her what was wrong and she said she didn’t know. We kind of ignored it until a few days later when I played it again. She didn’t throw up this time but she got really bad heartburn.

We figured it must have been something about the song, and through trial and error we found out it was the Gmin7 chord that was giving her horrible heart burn. Is this a common phenomenon, or is it possible, as I suspect, that she has some sort of Freudian association with the sound from her childhood that causes this?