You might try getting him tested for nutritional deficiencies.
Years ago, I read about a vitamin therapy protocol that was helpful for kids with autism and I put my son on the parts of it I could find, which was some B vitamins and magnesium. After a few months, his handwriting improved and so did his social skills.
He's in his thirties and a lot more functional than I ever thought he would be. To this day, when he starts making me too crazy the solution is "he needs B vitamins." (I typically try to get some steak into him at that point so he stops being weird and difficult.)
Years ago, I read about a vitamin therapy protocol that was helpful for kids with autism and I put my son on the parts of it I could find, which was some B vitamins and magnesium. After a few months, his handwriting improved and so did his social skills.
He's in his thirties and a lot more functional than I ever thought he would be. To this day, when he starts making me too crazy the solution is "he needs B vitamins." (I typically try to get some steak into him at that point so he stops being weird and difficult.)
(See also: https://news.ycombinator.com/item?id=25051738)