My son is 9 and hasn’t been officially diagnosed, but has “many of the characteristics of” ADHD. His speech patterns have always bothered me. He sometimes says “um,” but more often it’s like a really slow stutter: “Today I went, ent, …ent, went,…Today I went to my, y(I sound)… y, friend’s house.” He doesn’t seem to realize that he’s doing it and argues with me if I try to point it out. Asking him to stop and think about what he’s saying just lengthens the process. Luckily, it only happens when he’s really distracted by something, and isn’t an ‘every conversation’ type of thing.