my daughter doesn't talk much too - she is 2 end of mth - and i never think there is anything wrong with her except she is a late talker. Sometimes i think as parents, we become so paranoid and so imaginative! Do we realise the norm is more that 2 year olds don;'t talk than they do? In my daughter's playgroup classes, I observed every child closely and realise 9 out of 10 either babble or say 1-2 words. The one exception was a little girl who not just talks but utter 10-word sentences politely and succintly - I told her mother she ahs a genius in her hands. haha.
Another thing I find abt HK doctors in my 4 years here is they are GREAT in scaring people. Once a doctor said my friend's boy has acute bronchitis (and he wasn't even bothered by his minor cough!) and another said her child has a rare bacteria infection bla bla bla. Then the blood tests come in, the speech therapists come in, the expert this expert that - all costing thousands of dollars. I fell into that trap before but never again! My daughter has prearicular pits (ear holes) and doctors ran a million tests to conclude: she can hear afterall. Then she has umbilical hernia - poking here and there, many discussions of surgeries. Then they said she had premature breasts - so she has this syndrome that syndrome. I became smart and fed up frankly about the trend of HK doctors so we went back to Australia for a special medical trip and the conclusion: all is well, her breast tissue is normal cos of hormones she got from me (and in fact has diminished now 6 months later); she can hear perfectly, not just sounds but even subtle language tones/clicks (the PD who saw her has the exact same prearciular pits too!!! and he is smart right?) ; and her hernia? the hole has closed completely by that time. I have spent more than 20,000 in HK just to hear bullshit!
In my simple mind, surely autism cannot be diagnosed based on one parameter of speech capability? There must be other symptoms such as shying from eye contact, anti-social behaviour, actions that go beyond normal naughtiness? I heard from some current affaris programs before that autisim is a very very complex syndrome and hard to diagnose until they are 4-5 years old.
Just my two cents....