I was wondering if after 20yrs, someone could go undiagnosed with CF, yet actually demonstrate some symptoms? Such as constant hacking up of mucus, constant headaches from mucus congestion, thought to be bad allergies or chronic sinusitus, "Exercise induced Asthma", having harsh stomach cramps every day since childhood, and just the past few weeks, swelling and unaggravated bruising of the shins and calves. Doctors hinted that the swelling can be caused by a respiratroy infection.Just wondering the possibilities.....Oh, and as a child, there was an incident with the lungs where there was constant coughing, then inhalation of a toy, which they then took out after a month....perhpas it could be a reprecussion of the toy incident.