Binky - you are sure to find some answers about your asthma in these recent topics from the Medical & Health forum.
http://www.pprune.org/ubb/NonCGI/For...ML/000005.html
http://www.pprune.org/ubb/NonCGI/For...ML/000007.html
http://www.pprune.org/ubb/NonCGI/For...ML/000029.html
http://www.pprune.org/ubb/NonCGI/For...ML/000047.html
http://www.pprune.org/ubb/NonCGI/For...ML/000054.html
http://www.pprune.org/ubb/NonCGI/For...ML/000125.html
As far as the specs go, I have worn them since before I started flying at the age of 18 - but there are limits of course. Regret that not being professionally active any more I do not know the new JAA limits.......but someone reading this will probably be able to point you in the right direction?
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Quickly; bring me a beaker of wine, so that I may wet my mind and say something clever. (Aristophanes)
[This message has been edited by Speechless Two (edited 27 August 2000).]