This is FASCINATING! I don’t have all of these symptoms, BUT I was never able to burp until a little while after I started using a CPAP machine around 13 years ago. Then I started experiencing increasingly frequent aerophasia from the CPAP. Over the years my symptoms have also increased.

When I was a kid I had recurring stomach issues. I had upper and lower GI tests done. It was eventually attributed to anxiety, and I believe it was an accurate diagnosis. My childhood involved a lot of verbal and some physical abuse as well as mistreatment bu several teachers.

However, the earliest I recall the sighing was high school, and I had no image testing done at that point.

Again, fascinating stuff! I really appreciate your sharing this!

I’m still open to it being anxiety. The mind is very powerful. I just feel that anxiety as a cause has been properly explored in my case. Anxiety seems to be a blanket diagnosis for anything that a doctor can’t figure out and it is so frustrating.