So are there any actual cases of those "fuck you I've got a doctors note for why i have to keep enabling all my worst traits and you can't criticise me for it" disorders like ARFID and RSD actually being real and unfixable, or is the deal that like they made these as a map of common symptoms so methods to deal with it could be clustered together and easily applied to patients and then people adopted them like way lamer sexual identities?