For what its worth I was told I had a hiatus hernia about 5 years ago ( I was getting a lot of heartburn and pain some of which resembled an angina attack) needless to say I was pretty worried.
Anyway I found (via the net) a cure which was for me 100%
Try this, buy some fresh ginger, grate it up and squeeze out only the juice, take 1 teaspoon of juice when you get up in the morning, before you eat or drink.Do it for 3 weeks and voila' you are cured!
I cannot remember the internet site I got it from but they claim pretty much a 100% success rate and as I said it was for me.
Good luck