I would appreciate comments from anybody with knowledge about adult onset (or adult diagnosed) CF. I'm a 37 year old male. For a full year now I've had several symptoms that have yet to have a specific diagnosis. A year ago I went to a doctor with both abdominal pain and chest discomfort/pain. It was the first time I had been to him and was confronted with one of those forms to list all diseases/symptoms that one suffers from. On that form I included many things which were either intermittent or ongoing problems such as sinusitis, fatigue, sleep problems and digestive dysfunction. I guess I appear too healthy because he was very dismissive and said he couldn't think of a single thing that might lead to such a wide variety of symptoms and then subjected me to a psychological questionnaire. After this wonderful encounter I ignored the symptoms for about 6 months before the feelings of chest pain got worse. Using a new doctor I've now had chest X-Ray, Chest CT with some sort of injection, TB test, heart stress test and asthma evaluation. All of these were negative or normal. Every time I have a day where the pain is most noticeable I tend to do a bit of poking around the internet to see if I can find some leads. This time I ran across references to adult onset CF. So here's the question. With the below listed symptoms/history is it possible that I could have a variant of CF that's gone undiagnosed to age 37? and if so is there a doctor in S. Cal that might have experience with adult onset CF, such that they wouldn't simply write hypochondriac in my chart?1 year history of intermittent chest discomfort/pain. Slight pain usually occurs with laughing, yawning, coughing or deep breaths. Sometimes I tend to cough but rarely is anything coughed up. In general breathing seems a bit more difficult than in the past.I have fairly bad sinusitis with congestion and post nasal drip. Pulmonologist that ruled out asthma seems to think chest pain is secondary symptom of sinus problems. I went to an allergist years ago that said the only thing I'm allergic to is dust mites. My sinusitis problems seem to occur even when in environments presumably relatively free of dust mites.I have had surgery for nasal polyps 6-8 years ago. I understand polyps are potentially correlated with CF.I had a gallstone at age 25. This is very rare in skinny, young men which is why it went misdiagnosed for a full year. I now understand that this is also correlated with CF.I have had intermittent digestive problems for a number of years. Also, for a long time I have noticed that stools often are covered with thick mucus.I have had lower abdominal pain that is hard to pinpoint and doesn't seem to feel like intestinal pain/cramping.I've had several urinary tract infections (rare in guys my age) and was told I had a slightly enlarged prostate by urologist.I have Hashimoto's syndrome thyroid disease. I take synthroid and my levels are normal.Despite having drug controlled normal thyroid levels, I have now started to feel fatigued on a regular basis.Sometimes I seem to be heat sensitive, feeling hotter and sweating more than would seem appropriate for ambient temperature.