I can so relate to what you are saying here. My iron level is 8 and has been 8 since before I was diagnosed and went gluten-free in September of 2006. My B12 levels are also very low (can't think of the number at the moment). My doctor is going to finally refer me to a hematologist. I've been undergoing all sorts of GI procedures in order to officially "nail down" my absorption problem. They've included an upper GI, an endoscopy and a colonoscopy. I go in Friday for a small bowel series, as my dr wants to check for lesions. I'm just so tired. I have neuropathy in my arms and legs/feet and hands. I get heart palpitations and am constantly out of breath. I feel like heck and have felt this way for more than a year. I've been taking supplements since September, too, with no effect. My heart goes out to you. I hope you feel better soon.