He shakes his head. "It's just well-disguised. I still have nightmares - I always will, I think - but there, nobody sees me sleep. I bury myself in work, to distract myself. I sit and stare out windows...Little things, when it gets too much." Sometimes they sneak up on him, and he doesn't even realise until later that's what he's been doing.

"Oh, I'm practical about it," he says, after a long moment. "The work I do helps someone. I have the ability to care for...to support someone else. I can take pride in the things I accomplish, knowing I've done well." It's all very utilitarian, in a way. But he takes pride in who he is, what he does, what he can do; he draws strength from it.

"Sometimes acknowledging the effect you have on others, the reality of the tasks you do, is a start. You have a skill for caring for other people, for example. A skill for music. For making people smile. I think that's something you can be honest with yourself about."