What are the main symptoms of pddnos in adults? by "main" i mean ones that are found in both young and older adults.

Pervasive Develop-: mental Disorder - NOS is no longer used as a diagnosis. It is now Autistic Spectrum Disorder Level 1 (ASD 1), with the fewest impairments & least need for supports. Some degree of difficulty with social reciprocity & social communication + some observable stereotypical movements or narrow, restricted areas of interest can indicate ASD 1.A psychiatrist or psychologist can make the diagnosis.