I believe most people see the blocks as “brain farts” or taking a breath before speaking again. For me personally I know exactly how I want to sound in my head, smooth and no breaks. So it’s more noticeable to me. I have a lot of blocks in my speech and I sometimes will say 2-5 words on repeat about 3 times or say words like “sommmmthing”. No one has ever said anything about me having a stutter, having me believe it’s not as noticeable and maybe they think I’m a slow talker. Also want to note a lot ppl think a stutter is only “ i-i-i I went t-t-to the s-store”