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.
The biggest problem I have with self-diagnosis is the idea that self-diagnosis (along with formal diagnosis) is actually capable of diagnosing a neurodevelopment disorder. It just ain’t so and autism is a social construct that LARPs as a medical one.
I'm not convinced that self-diagnosis is any less accurate than professional diagnosis for conditions like autism or ADHD.
However, current psychology is realizing the previous ways of lumping people with vastly disparate needs into finite categories is bad and dumb and doesn't really help anyone. Turns out, making someone's mental illness easy for nobodies to talk about isn't that useful for treatment, while extreme nuance and personalization IS really good for treatment.
It ain’t great!