My friend's son is is 6 years old and is struggling at school. He worries a lot, wakes up most nights with bad dreams, works best when the day is structured, has a very strong sense of smell and won't eat a lot of foods because of it, is an excellent reader but cannot draw or write and is very articulate and confidently talks to adults. Does anyone have any idea what these symptoms and / or behaviours could indicate or do they just seem usual for a 6 year old boy?