I tried probiotics already, and things got worse from it actually. I started out with low count probiotics and gradually increased dosage. The last probiotics I consumed was Renew Life Ultimate and it only made me sicker by giving me digestive issues like dysphagia, heartburn, and gurgling stomach.
I also tried lots of fermented foods like Kimchi and Sauerkraut. However, fermented foods are very high in histamine, which can lead to inflammation. I have become mildly intolerant to histamine over last year, possibly due to leaky gut. As a result, fermented foods did not agree with me either.
In addition, I have taken soil based probiotics, only to realize that SBO can be opportunistic in an immuno-compromised environment. So, I stopped taking it and immediately felt better, but symptoms never went away completely.
All these trial and error led me to think that I might have SIBO, but I am not 100% sure on this yet...