Thanks for all the suggestions guys. Mad jock, I'm not really that small, I'm 6ft 1 if that's what you mean?
Also, humming a song? I might try that. I like the whistling tune that john wayne whistles in 'the high and the mighty'. Might try that! haha
I've heard that ginger helps. Personally I hate the stuff, but I'll maybe give that a go too.
And just to add, the training here is on Florida, so it's VERY hot in the cockpit and the 'ventilation' isn't great. That doesn't help things at all.
MartinCh: yes, it gets very bad when i think about it. I try not to and relax, but that's easier said than done