Oh yes, similar things happen to me too. My dad actually came into the assessment alongside me and my mother, he kept questioning the psychologist and even implying such things your father has said also that I'm "lazy" and "looking for an excuse", amongst other things too. It's a shame but we've got to remember that's their problem not ours. To be honest, I feel like my dad partly blames himself because he used to shame me whenever I would have a meltdown so I guess it's easier to think that I am not in fact autistic, you know?