My son did not respond to his name and flapped his hands particularly when excited. He would get very distressed by baby toys with lights and music and scream when we went into shops etc. His language was delayed, no words until 2years and it was very difficult to gain his attention.He reacted strongly to washing, hair washing,brushing etc and loud noised such as hoovers, hair driers,also the phone etc.He would only cuddle on his terms.He did not look if you pointed to something.He liked spinning things also, saucepan lids,wheels etc and would lay all his toys out on a raised surface without playing apart from repetedly opening and closing the doors on toy cars etc.He would just wonder if we took him out.He would spin things up close to his eyes and watch tv from an inch from the screen.
He was also delayed in his motor skills and had poor balance.
When he was very young I used to think he was delayed in his development and hypersensitive, maybe adhd as he had such a short attention span.
There were lots of signs that pointed to autism and certain things became more prominant the older he got. But it wasn't obvious to other people unless they knew him or studied his behaviour. I was unsure right up until his diagnosis at 3.
I know to get a diagnosis they need to meet a certain criteria.
Have you done the mchat online assessment as it will tell you if your son is at risk from autism and also give you something to present to the doctor. all the best