I was surprised that initially no one would give me a referral to a pulmonologist on the basis of long term symptoms such as those described in this thread:

http://neurotalk.psychcentral.com/thread175640.html

So I didnīt think I would bother going back to the doctors again about it.
But when I did, I got another surprise by actually getting a referral in a few weeks based only on the symptoms I had on this and two other flights.

Anacrusis