Yes. Sometimes I will think to myself one word at a time. Sometimes I will think to myself in the abstract (wordless). I don't know how to control it. I do know that once I realize I'm thinking wordlessly, I collapse to wordfull for a bit. There is never anything close to a voice associated w/ these thoughts though.

I read at about double the pace of the average reader iirc. I do phrase-based / sight reading, which is what speed readers typically practice doing. An interesting aspect of this is that I often never learn character names in books, since I just recognize the shape of the name. A friend of mine with a similar reading style also has this experience.