symptoms of autism

it's happens like b4 3 yrs old. someone wil find it out 2 late. cos at 1st u tot ur kid duno how to talk, it's normal....... but then, between 3-4 yrs old. u wil found him/her adnormal. anyway, it's stil hv chance to cure the kid b4 8-10 yrs old. but of cos u hv to pay more effort & $$. my sis's son = autistic. he is 7 yrs old now. when he felt joyful, nervous? he just keep flapping his hands...... or tighten his muscle. he dun talk.....dun express himself. he can just tell single words.....stay silent all the time.

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