Just a footnote about "manning up". Firstly I hope it was a joke. Secondly I would not say that to him. Thirdly when you break a leg, you can see physically that there is damage and that an operation and or cast will need to be done to fix it. When someone has a mental broken leg you can't see it can you? So how the fuck do you fix it? Just a thought. Having seen the effects of a mental disorder affecting what you and I would call A normal person like you and me one minute and then a gibbering wreck another for no apparent reason you do realise how fortunate you are. Admittedly his situation is as a result of a few really bad flights in the past and in a way it's not debilitating, annoying for yes, but not debilitating.
Until you have walked in someones shoes for a mile or two don't judge the comfiness of those shoes.
Thanks though to all those who offered advice, much appreciated.
Thats a fair point and it can't be underestimated. I had a similar issue and did something about it. There are courses of action to take so it doesn't restrict your ability to live life - I guess it depends how determined you are to overcome these challenges.