<<Disclaimer: Verify this information before applying it to your situation.>> Listmates: After one year and 6 months of being strictly GF, I found that some of my symptoms still wouldn't go away. The loose stools diminished and the mental fogginess was much better, but the fatigue, lethargy and joint pain persisted. I suspected that I was still suffering from malabsorption, and I occasionally noticed bloody stools. Once, after overindulging on GF ice-cream and frozen yogurt, I got a severe rash on the sides of my face and across my forehead. The rash was accompanied by a crawling sensation in the area of the rash (I do not have DH). After this episode I decided to stop all dairy products. Within a week of discontinuing all dairy, I noticed a gradual improvement in my fatigue and lethargy (and the rash went away). I've been dairy-free for about a month now, and today I accidentally ate a GF energy bar that contained whey. Within a few hours I developed bowel trouble and I am feeling more fatigued with joint pain. I am sure that this is not the typical lactose intolerance, and I did not test positive to dairy products on an allergy screen. My question to the list is this: How common is cassein intolerance among celiacs? Does cassein intolerance affect the body similarly to gluten? Is it a separate affliction or is it related to the damage caused by gluten? Finally, are there any good resources out there where I can learn more about cassein intolerance? There is a web site called GFCF (Gluten-Free Cassein-Free), but it didn't give much info about the actual biological/chemical mechanism. Thanks to all of you. This list has been a lifesaver. Literally. Robb, Maryland, USA