You might be getting ahead of yourself. Do you have any reason to believe the doctor would prescribe medication? Or, are you guessing?
I hired a psychologist after I concluded that I was probably a High Functioning Autistic (that's what I thought the correct term was, at the time). As you undoubtedly know, they can't just do a blood test or stick a thermometer in your mouth to assess whether or not you are mildly autistic. And it is further complicated for adults because they are used to assessing children.
The hardest thing for me was finding a psychologist who would assess an adult as old as me. And I could not find one who took my insurance.
The assessment itself was sort of fun. It was interesting. I think the psychologist was amused by me several times, too.
To help things along I brought her all of the records I thought might be relevant. Results from personality tests I had taken, scores on standardized academic and college admission tests, report cards and college transcripts, and a resume. I also happened to have the journal my Mom kept for my first year and I brought my bride along, too.
The psychologist had me take some written tests that were like personality tests, and she talked to me. Oh, and there were a few things she asked me to do that were clearly geared for young patients.
It took more than one appointment. And it was sort of fun!
When the psychologist gave me the assessment she did not even hint about medications. I think she would gladly have signed me up for on-going counseling--because, after all, that is how she pays her bills--but she did not try to talk me into it. She could see I was happy with the diagnosis and had been making my way through life without counseling. She smiled and wished me well!
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When diagnosed I bought champagne!
I finally knew why people were strange.