I was diagnosed when I was ten.
I recommend, not specifically for autism but for a lot of comorbidities and certain traits of autism;
The Explosive Child: A New Approach for Understanding and Parenting Easily Frustrated, Chronically Inflexible Children [Ross W. Greene PhD]
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Diagnosed autistic level 2, ODD, anxiety, dyspraxic, essential tremors, depression (Doubted), CAPD, hyper mobility syndrome
Suspected; PTSD (Treated, as my counselor did notice), possible PCOS, PMDD, Learning disabilities (Sure of it, unknown what they are), possibly something wrong with immune system (Sick about as much as I'm not) Possible EDS- hyper mobility type (Will be getting tested, suggested by doctor) dysautonomia