I think it's possible that ADHD impacts long term memory and I just can't remember half of what I actually learned at High School. But maybe that's also because ADHD put me in the "special" monitored class of misfit kids idea they had where all I had to do was do my homework, so it was like study hall with a social worker.
But then again, I barely remember what I remember from some subjects I wasted loan money on for college either, and I kind of flunked a career pathway program.
"You're made of spare parts, aren't ya, bud?"