Exactly the same problem here as both you and GP comment: my eyes jump around paragraphs quickly scanning for keywords/phrases to hook into. And if it's an interesting passage, I can't get very far without my mind drifting off on my own tangent, and I end up having to re-read a few times like you.

I also find reading tiring even though I can read quite fast, because I want to read each sentence properly, so I keep going over the text. It's a little obsessive-compulsive I guess.

Is this common with ADHD?