have you consulted doctor regarding his diagnosis. diagnosis for autism
is given at 3 to 3 1/2 years only. before that he will be in queries only. some diet and product are available for kids with autism and ADHD
, but, it doesn't help too much, for your satisfaction you can give for your son. don't wait for diagnosis and go for products.
go for hearing test(BERA) and consult your occupational therapist regarding his issues.