Another big one is the “#DIDTok” trend, in which TikTok (and increasingly Instagram) users feign Dissociative Identity Disorders, often claiming “Systems” of literary or pop cultural characters. A whole subculture inside this subculture “hosts” alters related to Naruto, Harry Potter, or Dune.
“”Recent global popularity of social media content about dissociative identity disorder (DID) has coincided with increased self-diagnosis among children and young people who have formed large online communities and presented in clinical settings seeking to affirm their self-diagnoses.”
https://journals.lww.com/hrpjournal/fulltext/2025/01000/self_diagnosed_cases_of_dissociative_identity.4.aspx
This development is not unique to DID; it has been documented in relation to other psychological conditions, including tic disorders, autism spectrum disorders, attention-deficit hyperactivity disorder (ADHD), borderline personality disorder, and bipolar disorders (BPD). DID self-diagnosis based on social media information has been the subject of extensive media commentary, but relatively little published clinical writing to date.