my ds has mild asd[PDD.N.O.S]but obviously has autistic traits which are very annoying for all but i feel my poor dd [age 5] is getting pushed out sometimes because of the attention of my ds[6yrs] and she often gets annoyed by his behaviour and ive caught her sometimes thinking..when others come to tea and my ds plays up and has meltdowns or whatever and shes said a few times that other children dont act like her brother , although she dotes on him and misses him terribly when hes not around but finds him naturally very irritating.basically what im getting at is , what age should i explain to my dd about my ds`s special needs