Well, to begin with, I don't really think I can get diagnosis of it here. Where I live, I find very difficult to set a visit to a medic, whatever it is.
After the Internet it became very easier for people to find out diseaces they might have but never had the proper care or knowledge at all. By finding autism I found some symptons, which I've already described. Even so, that's not enough to qualify someone as having autism.

As far I know - and I really don't know too much of it - since the causes are unknown, it can be anything, there's not a single factor that changes it all. So autism is based on comparison around different people, as some will have a certain symptom, some will have another.

That being said, most people with autism tend to have common or similar symptons. So that's why I expect people to know when they see. Everyone might have a different trait or behavior, but when they have several traits around a same range, that's probably pointing to something else that might not be "just" a trait or a quirk. It might have a particular reason beyond this.

Thanks..