Keep enzymes and probiotic handy, Take it for a week after each meal. This problem should be solved.
Your gut is filled with unfriendly problematic bacteria, it's time to say goodbye to them.
Send army of your friendly bacteria down there, take active cultures approx. 3 billions probiotic.
Take liver tonic as well like silmarin with turmeric, it's totally safe.
Of all, avoid any junk food. If you eat processed food, nothing can help you. If you smoke, these remedies are going to be temporary.
So, stay focus on what you eat as well. Like someone says, slowly increase your dietary fibre. You do it all at once, you'll get diarrhea.
tk cr