Actually autism is officially described and classified in the DSM-5 Diagnostic and Statistical Manual of _Mental Disorders_.
The rest of ad hominem, I will ignore. For one, I find the language insulting to people with mental health issues (even if one considers autistic people to not be among them), as if they're lesser people.
E.g. "They are going to wonder if I am a danger to them, and in turn, that mentality is going to cause direct harm and danger to me and other people on the spectrum." -- because people with mental illnesses are necessarily of "danger" to others?
>They are going to wonder if I’m going to exhibit symptoms of mental illnesses since I am autistic.
Well, they will be right to wonder it.
Even for the mental illness issues that you would agree to qualify as such (from depression to OCD), are commonly associated with autism, much more so than in the general population.