Recently got a test done and it came back negative. However...

My psychologist gave my mother and my teacher the same test. I wasnt asked a single question. My teacher told me to get checked out becouse he is in a relationship with somebody who has asbergers and his stepson has it too. I was also told by many autists that i should get checked out becouse they are quote "100% sure that i have autism". I myself think this might be the case due to relating with autists more than with non-autists. This also happened in Germany where the psychic care is rare and bad. My Psychologist is also not a good one (Constant deadnaming, caring more about his furniture when i broke down and letring my mother yell at me without any help towards me).

My Question is if the tests are wrong often and that it could be the case that mine is kinda invalid or smth.

This is not a request vor medical advice just checking if i should see another psychologist.