It's also become quite fashionable to pathologize oneself and make it a kind of marker of identity. "I'm neurodivergent!" they declare, even though the concept is dubious as a bona fide category. It's a weird phenomenon; a disease or disorder is not an identity, but a defect. But people in general seem to be starving for identity - hence the popularity of odd subcultures and ideologies - but too weak to forge their own.
Part of the motivation also seems to be that we've fetishized disorders; having or claiming to have disorder X is a weird way to feel "special" or exceptional. Another part of it is that it functions as a kind of instrument for uptight people to gain a sense of exemption from social norms - real or merely perceived - that they feel burdened by or live in terror of "violating", but who are incapable of or unwilling to ignore them, because what would people say! "Oh, I'm weird, because I have disorder X. Can't help it, sorry! Can't judge me, because then you, not me, are the asshole!"
Needless to say, it's not very rational.
Which is not to say various disordered conditions don't exist.
Part of the motivation also seems to be that we've fetishized disorders; having or claiming to have disorder X is a weird way to feel "special" or exceptional. Another part of it is that it functions as a kind of instrument for uptight people to gain a sense of exemption from social norms - real or merely perceived - that they feel burdened by or live in terror of "violating", but who are incapable of or unwilling to ignore them, because what would people say! "Oh, I'm weird, because I have disorder X. Can't help it, sorry! Can't judge me, because then you, not me, are the asshole!"
Needless to say, it's not very rational.
Which is not to say various disordered conditions don't exist.