Atypical CF? Mild? Or maybe not?

Does anyone have of know what could possibly be synptoms of atypical or mild CF? My oldest son, who is about to be 7, has for all his life had repeats respitory infections. He has severe bronchitis at least two to three times a year, and always has a nasal infection. My other 4 never catch it either. He also has chronic constapation that he has had since a baby. It has gotten to the point where he has tears that bleed. He's also has really bad tooth decay, and has needed lots of cavities filled. Our pediatrician doesn't seem to be too concerned. My son was never tested for CF as a newborn because they didn't donthe testing at that time. But my youngest son, who is a year old, had a positive newborn screen for g551d, but passed his sweat test at 11 days old. He seems fine, excepts he has had bowel problems since a newborn as well, when he was first born had really smelly bm's and now they are still out of the ordinary smelly but he always constapaided like my oldest son. Again our pediatrician doesn't seem concerned and we have tried lots of ways to help the bowels and nothing seems to work, we are going for a 2nd opinion. But if anyone has any ideas or thoughts or thinks this could be atypical or mild CF please let me know. Just needing some advice.
Source: Cystic Fibrosis Families Forum - Category: Respiratory Medicine Authors: Tags: Families Source Type: forums