If you're younger, having the condition is less likely, but it's possible you have a nonspecific injury that behaves similarly.

One weird trick to try is a "heel drop": https://www.modernapothecary.org/blog/the-healing-power-of-h... Even if you don't have a hernia, it can't hurt to try it; you can even do it accidentally by drinking a sports drink and then jogging around the block. I was shocked to find it ended an awful bout of laryngopharyngeal reflux. (I had a scan long ago that incidentally observed a sliding hiatal hernia, but I didn't have symptoms for many years.)

In any event, I'm sorry you're having this trouble, and I hope it resolves itself.