I spoke to DS2's teacher at parents evening last week, and asked her off-hand (as in, I hadn't planned the question) whether she thought DS2 might be on the autistic spectrum. She replied, a touch cautiously, that he did score quite highly on autistic spectrum traits (I've observed this too). I've suspected that he might be on the spectrum (or at least not dead-on NT) for some time, as we have a history of autism in the family and various of his behaviours seem to fit the general profile. So her opinion corroborates my own. She did note that his behaviours weren't sufficiently pronounced to merit the attention of a SENCO, but that they did have copious notes on how to best handle him (i.e. lots of notice of changes, doing things in a predictable order etc).
We had previously been discussing resilience, and how DS2's resilience needs to improve. I agree, again, that this needs to happen - he crumbles distressingly easily.
Does anyone have any advice on teaching resilience to children, particularly children with autism? His pattern of crumbling is eerily similar to my own, and I've always thought I might not be entirely NT either. I've learnt to just push my feelings down and push through the terror, but that doesn't sound great now that I come to tell someone 
Any advice anyone can offer would be very welcome! He is just shy of 7yo, if that is helpful.