Our son was ultimately diagnosed through GI symptoms. He always had large frequent stools - up until the time he was diagnosed he was having around 6-8 large stools a day. But because he was my first I didn't really think to question them. I figured that whatever goes in, must also have to come out. He ate a ton of food every day, so it only made sense that he also would poop a lot, as well. I had so many friends complain about "picky" eaters, I was actually thankful that he was a good eater. I guess our first "big" sign that something was different was when his baby sister (who is 15 months younger than him) started eating baby food and having formed stools. We asked his doctor about that and she told me "not to give him so much juice." I only gave him about 1 cup of diluted juice a day, but I figured that maybe that was still too much. I cut out juice entirely (just milk and water) and then one day, I really noticed that his belly seemed really distended - like one of those poor starving babies you see on the news. Again we brought him in, and again his doctor dismissed us as "worried parents." My husband was a medical resident at the time and her explaination just didn't sit right with him, so we made an appointment with her partner. He was worried that maybe our son had some sort of milk allergy, so we made a list of everything Sean had eaten in the past two weeks. The partner took one look at the list (which would put most adults to shame) and then one look at his stool which we brought in in a zip-lock bag (which was huge, greasy, foul-smelling and fullof undigested food particles) and orderd a sweat test. We didn't know a lot about CF - I actually had never heard of it and my husband only had some outdated information about CF from medical school. We looked it up on the internet that night and thought "no way." Yes, Sean had all the GI symtoms, but he didn't have any of the lung symptoms. However, four days later, his first test came back at 115 and the second test (the next day) came back at 120. Sean is double DF508. Looking back, there were so many signs, but we didn't think to know any different. Sean was small when he was born (6.5) and always remained small. I think because I literally nursed him all day and all night for the first 12 weeks of his life, he was able to maintain a very small growth curve. He always stayed right at the 10th percentile. Because he was "growing" and always maintained their "minimum" of 10%, his doctors didn't seemed concerned at all. Also b/c he was our first, I didn't question the fact that I nursed him all the time. People tell you that you will be up all night long with your new baby. I didn't think it was too odd or "out of the ordinary" that I really was - literally - up all night long nursing that poor child. Finally, at twelve weeks, we went against our doctor's advice and started giving him formula. He did much better with bottles - so we figured that it was just my milk that wasn't filling him up enough. From that point on, he always seemed very happy and healthy. Although we continued to asked about his height and weight, we really didn't start to worry again until (as I mentioned up above) he was around 18 months and his sister was 6 months old. I guess you just want to believe your doctor when she says that your child is "just fine." I think the thing I would like to most change about doctors and CF diagnosis is that doctors must be trained to know that CF affects every patient differently. No two patients are alike and no two patients have the exact same symptoms. Some only have lung involvement, while others complain of GI problems. Some are born very sick, while others appear very healthy for quite some time. CF is not a text book disease. Even patients with the same genetic mutations can have very different symptoms and levels of health. I think too many doctors rule out CF b/c the patient doesn't have one or more of the classic symptoms. I know our son was overlooked for almost two years for that reason. I am sorry for getting up on my soap box, but this happens to be something that I feel very strongly about. I also know that I am not the only mother that happens to feel this way. Don- I am glad that you brought this topic up. I don't know what your exact plans are for the posts and emails you may get, but I hope this one helps you in some way. I wish your daughter (and family) lots of health and happiness. If you find out anything interesting, please let us know. Take care.Katrina, mother of three - Sean (5) w/cf, Carolyn (3/5) w/o cf, and Allison (21 months) w/o cfP.S. You mentioned "prune hand" - Sean's fingers and toes almost instantly wrinkle up in the water. My husband says that is make sense considering that CF is basically because of a defective potassium/salt transfer. He can explain it better than me, but basically people with CF loose their salt quicker in the water and that in turn causes fingers to loose the water in their cells and literally "shrink." Wherever salt goes, water goes with it. That is also the reason why heat stroke and dehydration is a concern with people with CF.