I believe I am similar. I have often thought that I would not consider locked-in-syndrome to be as bad as others express as a worse-than-death fate. I think I would just happily continue wandering within my meandering mind.

I think it is detrimental to achieving things though. Actually doing things takes far more discipline and that's time that could be used for coming up with more internal ideas.

As a side note to this, I also have aphantasia. So I don't get any images. Just concepts,dialog, connections etc.