Sabina posted a topic in Celiac Disease - Pre-Diagnosis, Testing & SymptomsI am wondering what you, more experienced persons think about this. I am worried about both of my kids. I have been tested for celiac disease after being gluten-free for 3 1/2 years with a short ( probably too short) gluten challenge of about 4 weeks where I did not eat as much gluten as I probably should have. My results came back highly positive for the anti-gliadin antibodies (IGG) but inconclusive, still within normal for the other 2 blood tests. Obviously I feel much better gluten-free and my symptoms resolve also. My lactose intolerance and acid reflux both completely disappeared on a gluten-free diet. I primarily got tested because both of my children have a lot of stomach complaints. My oldest child suddenly became very heavy as a teenager and then lost a lot of weight fairly suddenly. Now , in her 20's,she is extremely thin, tired and cold all the time, and consumes truly astounding quantities of food without gaining any weight. I cannot describe how much she eats -it has to be seen to be believed. She is also lactose intolerant and is in her 20's. She is not bulimic. My other daughter eats next to nothing and is slim and complains of nausea and bloating on an almost daily basis. We are of Irish descent ( the western part) and are 2nd generation Americans. Does anyone know of relatives with symptoms such as this and should I be concerned that they have undiagnosed celiac disease? Also - has anyone ever read of a connection between celiac disease and atrial fibrillation? ( I ask this question on my father's behalf) Thanks for any help!