Amanda Bergman’s 3.5-year-old son had already been kicked out of one day care when he arrived for his first day at a new preschool...Bergman, now 40 and a web content manager in central New Jersey, finally took her son to a pediatrician who specializes in behavioral, social and other developmental concerns. The doctor’s diagnosis: attention deficit hyperactivity disorder (A.D.H.D.) and autism.