It's really a question of identity, or at least that's how I've always perceived it. Who am I in this Clash t-shirt and Army surplus coat? Add to this cauldron of vanity the huge fact of motherhood and looking into the closet becomes both Cathy Cartoon and Greek mythology.
Although Contagion generated feelings of hypochondria, I found the movie's medical validity very satisfying. And when I say "satisfying," I mean I squealed with delight every time I heard a Microbiology 1650 buzzword.