Welcome ksy. I'm no expert but this sounds much more like giftedness than ASD to me. There's a book, "Misdiagnosis and dual diagnoses of gifted children and adults" which is useful for people in your position - you may want to get hold of it. In particular it has a page of "Incompatible or contradictory features" - things which, if you see them in a child of high intellectual ability "should raise serious questions as to the accuracy" of an ASD diagnosis. It's a long list but here are a few quotes:
- Relatively normal interpersonal relationships with those who share his or her interests
- Is comfortable with abstract ideas, unstructured situations, and innovative activities
- Can display empathy and sympathy on many occasions
- Lacks motor clumsiness
- Emotion is generally appropriate to topic or content
- Tolerates abrupt changes in routine, or only passively resists in the face of such changes
Maybe he's just a bit shy at nursery? Unless there's an actual problem I'd be inclined just to watch how he goes.
