Welcome to another military veteran! My bride and I are both Air Force veterans and my Dad was in the Navy when my parents met, married, and had me.
Prior to 2019 I knew nothing about Autism and...in my ignorance...would have abruptly rejected any suggestion that I might be Autistic.
(What I knew about Autism then: I had heard of, but not seen, the movie Rain Man.)
Reality gave me a hint to learn more about Autism (via the Internet) and the more I read the more I thought it fit me. Then I got my bride to read about it and she also concluded that it sounded like me.
But I did not consider the poorly-educated opinions of a couple of amateurs to be very credible. Then I found:
This test: Autism-Spectrum Quotient Test (AQ)
I took the test and my score indicated "significant Autistic traits".
They my bride took the test on my behalf, answering the questions the way she though I should answer them, and she got the same result I did.
That is when I decided to get a formal Adult Autism Assessment. And it was kind of fun and in 2019 I was formally diagnosed as:
I am now Autism Spectrum Disorder, Level 1 (Mild)
It explained so many things. I did get champagne!
As you seek your own answers be forewarned: Many of the traits of Autism are not unique to Autism. There are other diagnoses that overlap some characteristics of Autism. While I think "Autism" was a great diagnosis, the best diagnosis is a correct diagnosis.
Good luck!
P.S. With hindsight, I don't think the Autism was much of a problem for me when I was in the Air Force—in fact, since I was in computers, the Autism might have worked to my advantage.
On the other hand, in my 50s I learned I had a congenital heart valve problem. It would have impaired me doing anything athletic. I think that heart problem complicated my time in the Air Force.
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When diagnosed I bought champagne!
I finally knew why people were strange.