Sorry I can't reply to everyone, but here are a few:
Re school - yes, it's totally inappropriate, we all know that now, but that wasn't obvious in primary school. He chose it, it's the closest one. He does not want to move to any of the other mainstream local schools. We're looking at other options.
Re taking tomorrow off - I should perhaps have said that DS is not especially worried about tomorrow's exam, it's more that I'm sad that I haven't been able to help be better prepared for it, and I know how messed up that is, hence this thread. He mentioned the exam once on the way home from school and he's had a nice evening. I suggested that he takes the day off but he laughed and said that would make things more difficult and he would not escape the exam. He also has a mentor tomorrow he likes to see.
@FloatingBean yes, this is exactly why he's still in school. We've explored EHE a lot. I don't believe that either DH or I would be great at this and EHE means we lose all LA support. We're working on getting an EHCP which I am told is easier to get if you stay within the system - that might help him get a place in a smaller specialist school, or funding for EOTAS which would give make him less reliant on the skills of his parents.
@Anyotherdude The school did actually give handouts to parents about the exam at parents evening. I'm glad your children are so independent though.
@CombatBarbie my son has actually had therapy though my insurance for months until the CAMHS sessions became available. We need to work with NHS and LA to get access to the right schools. I chose the title of this thread to provoke response.
@DancesWithFelines thanks for presenting this all so clearly here. I had read a bit about COA trauma too but not recently. Don't worry I'm not that uptight. He is definitely allowed to make a mess etc.
@wheresmymojo I had not heard of schema therapy - thanks - it does indeed look very relevant
@GreenWhiteViolet there's been lots of beautiful responses and great advice here for sure. I have also been wiping away tears.
Mostly all the responses have been great. Really helps to have so many perspectives when reprogramming neural pathways.