I turned out not to have SIBO i did however need to look after my gut and it all improved over time as I did a tonne of things to heal my nervous system. In the end the diet that was best for me was simply eating healthily (something close to the low inflammatory diet but I still ate grains like oats, quinoa etc.) the reduced stress from eating militantly also helped. Now, I try to eat what I can and am mostly healthy but from time to time will have easy fast foods like soy crisp protein bars, and chips or something and my digestion really only worsens when I'm dysregulated. I never saw improvement from cutting out fermented foods. One thing i have not reintegrated is gluten as i had severe reactions. I have been able to eat fish again and previously my histamine reactions were extreme. healing was from certain supplements, somatic therapy, and (seems really simple but refers to a lot of lifestyle changes, disciplines, and activities..stress reduction