Thanks for the details. I would like to say that there are few important possibilities which should be investigated and these are Malabsorption syndrome, bacterial overgrowth in intestines, H.pylori infection, food allergies, thyroid disorders, IBS. I will highly advise to have evaluation done by Gastroenterologist & will suggest these tests such as fecal fat measurement, urea breath test, hydrogen breath test, abdominal-pelvic scan, stool culture. Treatment should be done according to the cause identified and there is a need to have these tests & examination done by gastroenterologist. Best wishes.
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Dr. Amir Javed.