I am pretty sure that ds2, 9, has this. He's had interventions from LEA at school in year 2 and year 4 (one to one sessions over a period of 6 or so weeks at a time) to see if they could identify anything but he is very very good at masking his behaviour with adults one on one and both times there was no recommended course of action or anything more than a shrug of the shoulders when I asked what we could do next. His teachers recognise the issue to a certain extent but don't seem to see him as an individual, just a set of problems for their class.
I know from a little bit of research that this is a fairly new branch of the Autism spectrum and just wonder if there is anyone out there who has experience of it? My lovely tender little ds is missing out on so much that 9 year olds could be involved in and my heart breaks for him :(