Hi kd:
Per the other posts on this thread, I would not be relying solely on a pediatrician's suspicions and instead would be raising my concerns with someone with extensive experience in developmental issues like ASD and ADD (a psychologist, neuropsych, or developmental pediatrician).
Both when we were living in the U.S. and now that we are in Australia, we found that there are often waiting lists for getting in to see the highly recommended professionals. Thus, if you have any concerns whatsoever about your son, it's better to start the process now.
Best of luck & hope you are able to get some answers!
Cheers,
Kristen
