I do think things like tiktok have caused it to explode. I remember my last year of teaching we had a PD session on what to do if teens start self diagnosing themselves with various behaviours. It causes issues cause then they often do start exhibiting other behaviours they didn't have and it leads to a lot of problems. Tiktok has also done massive damage to things like DID where people claim it and that they can just 'switch' to their 'alters' at will. I knew some people who actually had DID and they hated this and how it basically made light of all the serious issues they have.

So I do think the self-diagnosis trend is increasing thanks to social media networks. And in some ways it becomes a self-fulfilling prophecy.