Ian
The Dirty Socks smell will be the pyrolisis products of the engine oil that contain the organophosphate TCP that is NEURO TOXIC.
I am sure the airline in question offered you medical support! NOT!!
Sadly, the CAA DON'T CARE.
If you want a real laugh read the propoganda paper on Air Quality from 2004 from their website.
WHAT ALOT OF BULL!!
Don't forget the CAA is 100% funded by industry!!
If I was you I would do what crews should do SUE THE AIRLINE!
Tony