The one biggest arguments against otherkin outright having a disorder is seeing Otherkin interactions. Just like any social group, sometimes there are social blowups and politicking, but when Otherkin get together, or even just find out that there are other people like them out there, everything suddenly gets much brighter. It's harder to live with something when you think you're living it alone, that you're the only freak out there and you've got the entire burden to shoulder and no one to bitch at about it.

Suddenly, you find others like yourself, you feel less crazy, that means you act less crazy. You can build esteem, identity, some healthy pride or confidence in yourself. And that means you can face work or school or family with a smile on your face, a lift to your gait, that used to be a frown and dragging feet.

Regardless, people have studied a bunch of phenomenon that have a lot of relevance to Otherkin, and looking at what psychology has learned about them is exceptionally helpful at times.

{{Schizotypal personality disorder}} is of note to most otherkin. Kin might also want to explore the "{{indigo child}}" phenomenon.

DissociativeIdentityDisorder Dissociative Identity Disorder? (aka DID) is of note amongst otherkin hosts, as well as {{Dissociative Disorder Not Otherwise Specified}} (DDNOS) and {{Borderline Personality Disorder}} (BPD). See also KinH?:ChallengingDID? for debunking the "disorder" portion of DID.

Walk-Ins might find the concept of {{dissociative fugue}} interesting.

There may also be links to {{Aspergers Syndrome}}.