Hi My son heard a programme on radio 4 concerning a lady with CBID and feels I may have this too. I have this year been diagnosed with bronchiectasis, I have had psoriasis for the last few years, a persistent vitamin D deficiency, inspite of sunny holidays, and I find it very difficult to shake off colds which usually develop into laryngitis or/and chest infections. I have had ct scans of my chest and sinuses, the sinuses now being clear and no tumours in my lungs. Other than this I am very fit and healthy, my cholesterol is fine and blood pressure on the low side. I am 65 and slim. Should I have a test for immunoglobulin and is there any treatment should I have CBID? Many thanks. Sue