It's not just about taking a PPI, it's about the dosage. At one point I was on 80mg Omeprazole my reflux was that bad. Most doctors didn't even want me being on 40mg so to them going on 80 was almost outrageous. It was only because of the gastrologist's recommendation that they agreed to it.
Since then, if my reflux ever plays up and 40mg isn't working, I have their permission to go up to 80 for a week until it settles.
I have a terrible feeling that when you get the all clear and it turns out to be reflux, you won't accept it. You're not even looking at other options or reasons despite all our reassurance, every post has been about this cancer, that cancer, right down to the specific name for it, which tells me that you're feverishly googling all these ridiculously rare cancers that people our age just don't get.
Contrary to what stupid newspapers would have us believe, doctors are not idiots. They know when something is serious enough to warrant further testing and they know when it's urgent. They haven't deemed this as urgent because you just don't fit the criteria.
I'm not trying to be harsh here but there is nothing left for us to do to try and convince you. Every post you've made we have done our best to reassure you that this is 99.9% sure to be nothing serious and it always ends the same way, reassurance then a few posts later asking the exact same question again.
Really, it's down to you now. You can either let health anxiety ruin your life or you can try and do something to get a hold on it before it goes any further because we can't keep this reassurance cycle going on forever, it's not helpful for you in the short term or the long term.
I'm not saying this to be bad, or make you feel guilty, i'm saying it because i've been where you are and i'm still there. Let me tell you, once you cross the threshold into letting it grip you like this it is extremely difficult to shake it off and no amount of reassurance from us will make it better. So please, do something about this health anxiety now because life is far too short to spend precious years dealing with this as I have.