First of all I would like to thank you all for all your very helpful comments.
I saw the lung specialist this morning,(a different one) 5/9 /2018.
I told him how well I felt during my last flight, whenI came back from my holidays I had the flight assessment which I failed,so the lung specialist decided that I have another flight assessment, also I have to have to have a lung scan .
Thanks once again, much appreciated.
Kind regards.
Susan π