I've just flown long haul...a 7 hour and then a 12 hour journey.
I am a small person, short and light....about a size UK10. It was AGONY. My back hurt and my legs hurt and I was so uncomfortable on the 12 hour stretch that I thought I'd go loopy.
I really felt for the man next to me who wasn't at all fat but was a very big guy....tall and with huge shoulders and all that. He was obviously worse off than me....how on earth do people who're larger cope? It must actually hurt them?
I think having three seats together as they do on Emirates is awful...and that as people are now larger than ever, they should seriously consider making them bigger.