That’s been exactly my experience as well. I was an advanced reader by the time I started kindergarten, and was always excused to do other activities when the other children were going through the reading curriculum. It wasn’t until I was in college that I realized that the vast majority of the population actually hears a little voice in their heads that pronounces the words to them as they read. I still find the whole the concept creepy.
But English, no ~ no little voice ~ used to be a Latin voice in there, but I got rid of him ~ just gets in the way of the LONG STUFF.