both my girls are very bright but the eldest has other issues going on too. We had a WISC test done nearly a year ago when she was in Yr1 (just as she was 6.5) and her non verbal IQ and memory were over 140 but her non verbal was average (2 whole standard deviations lower) and her processing speed was just in the high average (only just, bordering average).
She has a language disorder which is often associated with motor planning/dyspraxia and dyslexia, she has a huge number of dyslexia signs but managed to pass the screen test because it was age appropriate so she already knew all the words and the only made up words in it were so short she could do them (she struggles over a certain length) and she is an excellent reader (she also has eye problems though so finds it hard work), she is quite plainly dyspraxic in many many ways and I know has motor planning problems but she compensates well and is incredibly determined so again managed to pass the ABC test so they won't diagnose her with anything although the paediatrician told us to treat her as if she has dyspraxia (but he won't put that in writing!).
so she is probably classed as multiple exception.
I agree that it is so hard for these children. they know something isn't right, they are frustrated because in many ways things should be easy for them but they seem harder, it must be frustrating to be clever but not be able to communicate or demonstrate that intelligence. the classic thing that happens is neither the intelligence or the problem is identified and they struggle along still being average so not of concern at school but terribly frustrated, having some emotional and behavioural problems and anxiety etc as a result.
Sadly for these children they tend not to get any help or support with their problems, they are still achieving (in some cases still achieving above average) so school budget doesn't stretch to helping them which I can understand but they should get some acknowledgement of just how hard they are working to achieve the normal levels. Our school has been brilliant with DD since we have been able to identify the problems. she doesn't get specific help but equally I don't think she needs it or wants it but they are aware of the situation and supportive when required.
Once you know though, even without any support, you can do so much at home. I gave up waiting for someone to identify the dyslexia issues so bought toe by toe. we didn't have to work through it all which you are supposed to because we had identified there were key areas she struggled with that we hadn't already managed to address so we went over and over those following their techniques, same with the dyspraxia problems, she does exercises, practices a lot of skills repeatedly (she likes this - she is a perfectionist and competitive), she does swimming, tap and ballet to help with coordination and so on. language wise we paid for private speech therapy which was worth the money (well my parents paid most of it actually to help us out so we were lucky we could afford to) but the SALT kept the number of sessions lower to make it affordable, gave us homework to do, tips about what else we can do etc rather than us just have to keep paying out. It means I feel fairly confident WE can help her to learn to help herself.
I do think though that an identified dual exception child will go a long way in the world. They have to be determined and hard working every day and therefore I think they get a good work ethic, they want to achieve and if they can learn to manage their frustration and that if you practice things you will get there eventually then they will go far. they are prime candidates for help to actually work so that puts them in a really good position.
PM me if you want a chat.