Honestly what helped me the most has been being on antibiotics. Soon as they ran out though, my stomach issues came back. I thought I had cured all of that while I was on them. So I'm continuing the low fodmap and experimenting with probiotics. Your right though it's literally Russian roulette. I started one today and it had me cramping up all day. I think I'm going to try and get into fermenting foods and making my own yogurt.