"Many patients who have digestive problems are also anemic due to low iron or low vitamin B12 levels. This problem causes fatigue, so it should be of interest to many people. Being anemic and having IBS is not unusual and there is a logical reason for it."
I'm anemic due to Celiac disease. It was my anemia that finally drove me to the doctor and to the gluten-free diet. I struggled with fatigue for years. Thanks to eating gluten-free and to daily iron supplements, I am managing my anemia.