I have had a chronic coughing spasms which occur at approx 2 hourly intervals throughout the working day for the past 30 years. They last about two minutes and are very violent. I have been to the top consultants and clinics in Manchester and London in the Uk and have had every known test. Maybe there is somebody out there possibly in the USA who has had similar symptoms which have been successfully diagnosed.
I have checked my symptoms against the over 200 causes of coughs on this site to no avail. Any Ideas.