We're in Brisbane and pediatrician has given us a diagnosis of GDD because my nearly 3 year old is too social for an ASD. She smiles and makes eye contact and has started some imaginary play, though at this point I think it is more mimicking than understanding the concept of play itself. She is delayed over all areas, has about 6 or so words she uses though she tries to interact with unintelligible conversation, she flaps her hands, spins and loves to swing. Has a handful of foods that she will eat, walks on tip toes, has no interest in playing with other kids, like to sit and look at books but doesn't read them and also enjoys stacking them over & over. There are probably more behaviours but I won't go on.
So my question is do I just go with the pediatrician? I suspect that she is a passive type ASD, which is the least common (or hardest to pick up???) - but in the meantime while she is GDD we have been 18 months on waiting lists and she has just started an early intervention course that runs 10 weeks. Should I be doing more, getting another opinion? Can anyone recommend someone we can go to, I just feel like I'm not doing enough and while I'm sitting around precious time is passing by?