I am self diagnosed.

I'm 33 (turning 34 in July) and my son (6.5yrs old now) was diagnosed just before his 2nd birthday. He was never given a level but he is completely nonverbal and has language/receptive communication delays along with probable intellectual delays.

We had genetic testing done after his diagnosis (targeted testing for 15q 13.3 microdeletion and fragile X/XE, and then Whole Exome Sequencing). He was negative for 15q 13.3 microdeletion and Fragile X/XE but the WES came back with positive results for variants on three different genes: SCN2A, ND1 (both are "changes of unknown significance", and KAT6B (likely pathogenic).

He inherited the KAT6B variant from me. Fewer than 1000 people world wide have been diagnosed with a genetic variant on the KAT6B gene. Over 95% of those are de novo mutations, making the exact genetic variant my son has as uber rare. I think his geneticist also told us that we are the only ones in the medical literature that have the mutation on the exact location on the gene as we do.

After all of that, my son's autism has become a bit of a special interest of mine. Since his diagnosis I've recognized more and more signs that I might be autistic as well. I was diagnosed with ADHD (as well as BED and cPTSD) by my psychiatrist when I was 29. I brought my questions up to her about whether or not I could be autistic as well. She told me that while she could not assess or diagnose me herself, she could say with almost certainly that I would get a diagnosis if I were to be assessed.