https://en.wikipedia.org/wiki/Dyscalculia
I think what the prior poster was describing is more what I have which I've taken to calling "having shit memory". Can't remember numbers or names, can't learn foreign languages well at all. Had trouble in elementary school with doing multiplication tables fast because I couldn't memorize 7s and 8s, so I'd solve 8x8 by doing 6x6=36 (easy) and then 36+6+6+8+8 to complete the square.
I can teach myself optimal control theory, but my speed and accuracy at arithmetic is just getting worse as i can use google as a calculator. I did fine in physics and math courses in college because you can use calculators, and because I always picked the easy questions first, and then ran the answers back through to prove they were right in order to find sign errors and such.
Btw from that Wikipedia article, about ADHD:
> In 2015, it was established that 11% of children with dyscalculia also have ADHD
And yeah, I don't really have ADHD and don't have dyscalculia. You said you have ADHD and sounded like you were describing dyscalculia.
(Actually I also don't have ADHD -- I'm something else than the other ones who replied earlier in this thread.)
I suspect you won't reply, this being a throwaway, but was there any ADHD involved? That's what I've gradually settled on for myself, not the "bouncing off the walls" bit, but the bit where you have trouble focusing on anything but the things that are "interesting" to you (and then HYPER focus on those things).