Irena I think I may have shared this with you a few years ago. DH is an artist/art professor. He doesn't have much time for his own work now but in the past (before DD was born) living with him could get quite interesting. He would get into what I referred to as "the zone". He would go into his studio for days at a time. He didn't sleep, he mindlessly ate if I brought him simple food but I don't think he even noticed he was chewing or swallowing. He emerged only occasionally to wash brushes or other tools. If I spoke to him during these times he wasn't even really talking to me he remained fixated on the piece(s) he was creating. Without question his best work came out of these periods.
DH doesn't have epilepsy, psychiatric disorders or any known pathology. He functions as "a regular guy" - he doesn't even appear eccentric enough to be taken for an art professor. I think he is likely a 2E adult who found a way to use his intellect despite unremediated LD's. (After DD's diagnoses came to light his parents told him they had been approached repeatedly by the spec Ed teacher about getting him help for his apparent dyslexia but they declined. Growing up with 2 brothers who were class valedictorians while he struggled made him feel "stupid" and so he turned to more creative means of expression.)
DD had imaginary friends when she was little and also had running dialogues. I would frequently listen to be sure I heard her doing both sides of a conversation rather than engaging in conversation with a voice in her head. I always breathed a sigh of relief when I assured myself she wasn't hearing voices. At 10 1/2 she still has a very vivid imagination but has also on occasion said to me "Mom you DO realize they're not real - right?"
I can't even guess what is going on with your DS but I do know you have worked tirelessly to address his 2E issues. He, and you, would probably feel better if you get this checked out. Did this come up during neuropsych evals? If so was there a recommendation? I'm guessing getting it checked by a neurologist would make him feel better about it.
Thanks Pemeberley, Yes you have mentioned you DH before and I had forgotten... Thank you.. it is reassuring

He is just annoyed he can't control it better. He likes the creativity, he likes the stories, etc. He does not like that he can end up looking a little weird muttering to himself without realizing it. ...