[loceng]

The wide array of personalities is why it's considered a spectrum - so either saying autism or autism spectrum is referencing the same thing. There are certainly severities of what behaviours and the level that they will present - they all fit within an evolving framework and understanding of autism though. Things can be difficult to diagnose, primarily because there can be multiple causes of symptoms. Someone with anxiety might be eating a food that makes them anxious, or they have unhealed PTS, etc.

A problem with taking the pharma approach to treatment of someone with autism is that, imaging being super hypersensitive to touch - the constant agitation from contact by clothing may make you constantly anxious right? So do you treat anxiety as a symptom of the sensitivity? It doesn't really make sense to do.