How about Harry Potter? He should have it! Actually I thought he had it for years, all those frightening nightmares and flashbacks, but then of course it turned out (spoiler alert!) that that was due to a bit of Voldemort's soul being stuck in him. Sort of metaphor though isn't it? I thought JK Rowling did a really good job of describing trauma (after Sirius' death too). Also, to me the dementors are a metaphor for depression.