Dyscalculia -- is basically like dyslexia but with numbers, and a whole lot else.
https://en.wikipedia.org/wiki/Dyscalculia

I've always had problems with left and right, clockwise and counterclockwise. As an adult, I add and subtract (and multiply) using my fingers. I get lost all the time and use my gps to get directions to places I've been multiple times. I have extreme difficulty remembering names and faces. I've often introduced myself to people only to be told that I already know them. And the biggest one for me: I cannot learn series of physical movements. I tried tae kwon do and went up to the yellow belt, but I had such difficulty with the moves, remembering the steps and understanding right and left. I would go to the class with children because I felt better with my slow rate of learning.

All these things I thought were just quirks. I never considered myself bad at math, I just thought I didn't memorize the times tables. I thought everyone counted on their fingers to add and subtract! I joke about my lack of direction, and I cover up my left/right, clockwise/counterclockwise struggles (I have a hard time calculating time, too). The difficulty with names and faces I can fake pretty well. I refuse to go to aerobics classes or take any class that requires movement steps.

So it all makes sense to me! Not that there's anything I need to do about it or can do about it, but it makes me so happy that these quirks aren't just single things but others have similar groups of struggles.

I've always relied on my strengths to cover up or compensate for these things, and I'll continue to do that. The only thing finding this out is that others have similar issues, and I always thought I was alone.