Holisticgirl, let me know what you find out. I'm having the same problem and the root cause of the malabsorpsion has not been discovered. Has yours? In the meantime, if nothing else, make sure you're taking some vitamins. This should help with some of the associated fatigue.
Thanks for the note. I have been taking a liquid multi vitimin. But I have some other things going wrong as well so have to resolve them first to see how my malabsorption is after that.