It could be dyspraxia. I would definitely look into it.

So, I looked at the list.
The only items that fit DS are the messy eating, and not wanting to write/draw because it's difficult. His fine motor skills are actually on par with peers, so it's more about his perfectionism and dyspraxia making it more difficult for him.

Other things like having high energy, being intense, having sensitivities to sensations, being ambidextrous, preferring adult company are all highly gifted traits.

Many of the things on the list don't fit. He is the most imaginative child I have ever met, so that definitely doesn't fit.

Also, realize, that DS has a very mild form of dyspraxia. So mild, it will probably work itself out with therapy. Because it is so mild, the teachers have a hard time "seeing it." sigh.