You must have had one hell of a tough life. My cousin's son is HUGE and autistic and unfortunately I'm not too certain on if he'll be able to live at home if the recent events continue. He's knocking on 6'2" and at least 230lbs. He's been steadily becoming more violent and my cousin is in her mid 50's now and maybe 140lbs and her husband is lucky to be 160-ish. Size is definitely on that side of the family SOMEWHERE in our genes as my youngest son is a tad over 6'3" and I "peaked" at a "towering" 5'7 3/4" and today I'm barely 5'7" anymore which I am certain all of the lower spinal damage I sustained is responsible for the loss of what little "height" I had.
My reason for responding to you is that I can't imagine how difficult many situations had to be for you without a diagnosis. No doubt medical technologies and diagnostics have come incredibly far since the 60s/70s/80s etc. I was without a doubt the poster-child for ADHD and possibly ADD as a kid. I couldn't sit still and IF I wasn't interested in what was being taught, I'd wind up being disruptive without that being my intent. I would have both of my legs (bent at the knees) jumping up and down at 10000 RPMs, be tapping my pencil off of the desk, continually shuffling around in my chair...hell, I bit my Kindergarten teacher on the ass as she dragged me to the Principal's office after I refused to stop barking like a dog...including as she was dragging me.... and when barking like a dog? May as well bite like one! Sick part is I STILL remember this as if it happened yesterday instead of sometime in '76 or '77!
At least I liked school (to a degree) until HS and then I couldn't wait for someone to start a fight with me as that was an automatic 10 day "vacation" and (to me at least) a ton of FUN! The fact I was "bigger/faster/stronger" than 99% of my peers as well as well as VASTLY more experienced as my brother and I fought just about every single day from the ages of 9-10 until our early-mid 20s! Literally at least 1000 full blown brawls just between the two of us.
I'm glad you finally did get the diagnosis and hopefully all of the help and assistance you ought to had been entitled to your entire life.
CptKirk