I've not had any tests done, but my T and I reckon I have some ADHD. My wifes close friend works with adults who have learning disabilities and has promised to do some tests for me though.
But reading your post I'm even more convinced.
The tolerance of adreniline, and the love of it, I have as well.
I regularly go that little bit too far in my 4x4 and end up multiple rolling into the bottom of a quarry or something equally stupid, and if there's 4 wheels left and they're on the bottom I will just drive off laughing my head off. Spectators and other drivers are genuinley frightened. I don't get many passengers, well - they only come once !
Team sports do nothing for me either. I like my thrills up close and personal, which is why acting out became such a buzz for me. And the truth is I miss that buzz, because I can't re-create it any other way that I've found yet.
My 4x4 has a steel cage, harness' and safety gear. It's a safe risk, acting out was an all or nothing deal. Get caught - lose my wife house job friends and family, that's some risk - some buzz. That's how it seemed at the time anyway.
My ADHD makes it extremely difficult for me to learn anything in a normal way. I can use this computer, but it's been years of trial and error.
I build my 4x4's from the wheels up, with no drawings or calculations. I can visualise complex things like a working suspension system in my mind, like a hologram.
My handbooks, textbooks are untouched, as are the instructions for the VCR, the DVD and everything else.
I read the first paragraph and get MEGO ( My Eyes Glaze Over ) imagine the problems this causes a maintainence engineer like me !
Nothing at all sinks in from text books and instruction books, never has.
But I can read complex novels and grasp the plot, what's going on there ? I don't know.
But frustrating doesn't come in to it sometimes.
This has led to me being barely qualified, in fact I failed my apprenticeship and bullshitted my way into jobs ever since. And I KNOW that I'm not stupid or thick, which is what all my teachers called me.
And this realisation was a major thing in me making the decision to get help.
A few years back I was drafted into a 'Focus Group' at work as the token 'worker'.
I went along and was introduced to the group of about 10 others - directors, senior managers and assorted high flyers ( arse lickers )
The whole thing terrified me at first, but after a few meetings I started to think "are they really SO smart ?" and by the end I KNEW that I was as smart as they were, just different.
That whole thing changed my attitude, and it needed changing because I was at the worst of my acting out at this time.
It changed the way I felt about myself, and I began to take notice of how other people actually went about their lives. I saw that they weren't the perfect people I thought they were, and I also saw that I was actually a lot closer to them than I believed; except for one thing. I sought out strangers and gave them blow jobs.
And I started to ask myself "WHY ?"
Go confidently in the direction of your dreams! Live the life you've imagined. As you simplify your life, the laws of the universe will be simpler.
Henry David Thoreau