Just wondering if any of you have vacationed or movd to a area from sea level to a high altitude and how it may have affected your CF. Did you have a hard time breathing? Headaches? We are thinking of taking a vacation in Colorado to ski in February where the altitude is much higher...My husband has already been out there once and he said he had a headache and felt short of breath for one day til he got adjusted; but he does not have CF. I don't want to plan a vacation when my daughter may feel miserable the whole time.