I had this problem and solved it. I lived near lady that kept goats and made my own kefir out of raw goat milk. This was the main staple of my diet. I also avoided grains,other complex carbs, and alcohol. I just ate goat milk keifer (48 hours old to get rid of all lactose), fruit like grapes and oranges, coconut oil, fish oil, and organic salads. I also ate raw egg yolks and lots of chicken/vegetable soup cooked in a crock-pot..... and I also did this cleanse first to kick off my healing. This combo completely healed my digestive issues. It took a few months, but it worked! I found the 3 Day Colon Cleanse here: https://naturalhealthway.com/the-3-day-colon-cleanse-that-works-affordable/