We are in the middle of trying to get an assessment for DS2 in YR5.
He has struggled socially since he was in pre school. He also had issues with pen grip and coordination and balance, and had meltdowns round flash points - mainly if someone though he had done something wrong, or round transition times where there was a lot gong on. His concentration was poor too, unless in a topic interesting to him (engineering/science), and he has terrible issues with his short term memory in school. He is clearly capable of achieving really highly in school, but he would need support in place to help him unlock his potential.
We have consistently raised concerns with school, who refused to admit there was any issue as he is academically able and so they said they could not refer as he was not below their achievement threshold for referral. GP refused to refer as they said could not do so without school support. This went back and forth until last year when a lovely NQT raised concerns with us. I was so relieved I cried. 
School did not exactly put a rush on any investigations after that though. He is not a naughty boy, they don't get complaints from other parents, and he is lovely and funny and caring, so for them he is not a priority. Especially as he is doing ok academically and not likely to stuff up their figures.
I managed to finally get a referral from our GP to a consultant for DS2 being hyper mobile (only because I really pushed and kicked off). Luckily the consultant we saw was a rheumatology consultant with a general interest in SN. He then set the ball rolling and we are going through hoops now. Every medical professional I have seen since the consultant appointment says it is clear that DS has SACD of some description, probably dyspraxia and possibly ADHD also. They are gobsmacked school haven't pushed for an assessment well before now.
After a visit from the CLASS team from the LEA, and a strongly worded letter from a development pediatrician at the clinic the hospital have referred to, plus physio reports, school have only now sent off the referral for a MAAT assessment, which means he will transition to high school with no support in place, as waiting times from the referral are 18 months.
We have been badly let down - I can see though from the outside why it must have looked to someone that we were in denial - after all DS2 is 10 now, and it's only been since last April that there has been any movement or help on the horizon for us.
People were probably looking at him and us thinking we didn't give a rats arse. 