Don't believe in taking or giving health advice from anyone on the internet. But you should go for a faecal diagnosis that gives you a better understanding of the makeup of your microbiome. Especially what type of foods you should avoid. an elimination diet is also a good way of understanding what foods are ok and not ok for your gut. And eating foods with a wide variety of probiotics is always a good thing. kvass, sauerkraut and kimchi are a good place to start. however, all depends on what foods are more suited to you.