No, that specific trait you have isn't undiagnosed autism

Idk who needs to hear this today but no, that one thing you did as a child that was kind of weird is not a sign you have autism, neurotypical people have weird quirks too and especially kids. Even if you still do it now. You're fine 😭 🫶

No, not even if it's a symptom of autism, you can have those just from mimicking your parents. No, crying because you don't understand how to cope with something they never taught you how to do or cope with doesn't mean you're having a meltdown either. They were supposed to teach you that years ago.