Call it whatever you want, my son has it. It may be some other known problem that is misdiagnosed, but he has many of the classic signs of ADHD.
First off, he was NOT disruptive in class nor “out of control”.
The symptom that clued us in was when he was reading, he would skip every third or forth word. For example - “For score and seven ago our fa on this continent a new na conceived in to the proposition that all created equal.”
He knew and could pronounce the words individually. But as he was reading them, he would skip over words.
Of course he had the classic signs of being SUPER easily distracted.
You could give him his medication and within about 20 minutes, he could read through the Gettysburg Address without skipping a beat. He could sit down and do his homework with no problems.
Whatever it is, it is real. Don’t let pieces like this fool you.
What you are describing sounds more like C.A.P.D. and not ADD or ADD/ADHD. CAPD relates to what you read and hear and to how it is processed. Skipping lines or paragraphs reading is part of it.