Today is DS's birthday, but he does not understand that it is his birthday. We have been showing him the calender for ages now and counting down the days, but it has not sunk in with him. He understands birthday parties, he associates it with other children's parties, cakes and candles. He loves blowing the candles and opening presents, but that's it, he shows no interest in anything else. If you ask him, DS when is your birthday, he will say '11th July' because he learnt it, but the words does not mean anything to him.
Sorry this made me sad this morning. DD (3) came downstairs this morning all happy because we are having a party and she wanted to wish her brother 'happy birthday'. Well, DS just said 'happy birthday, DD' as he knows he is supposed to say 'hello, bye' etc to people. So when somebody says to him 'good morning DS' he says 'good morning', but without meaning anything.
Sorry for the rant. Just can't shake off the sadness today.