[johnisgood]

Have you tried H2 blockers?

And as you have said, avoid anything that increases stomach acid production (such as caffeine or even tea, along with spicy food).

You might also have success with Venter[1] (Sucralfate).

[1] https://www.medicinesfaq.com/brand/venter

[mattgreenrocks]

Yep. I track which foods affect that and try not to stack them. In addition, I take famotidine in the evening with two different antihistamines.

I suspect I have a histamine intolerance behind it all, as it tends to be comorbid with ehlers-danlos.

[johnisgood]

I have never heard of Ehlers-Danlos syndrome. Does it really cause histamine intolerance? You may try 1st generation ones.

In any case, good luck and I hope you can find something that makes it manageable at the very least.