A lot of psychiatry is essentially someone following a rote decision tree process to arrive at a DSM diagnosis. So if you do 1hr of research beforehand you can probably get a psychiatrist to diagnose you with any condition - and you'll also see how unnuanced most of their questions are. In your case with the anti-psychotics, you made the mistake of believing the psychiatrist actually cared and that answering that question honestly automatically put you in the subtree of their decision tree that ended up getting medicated with those.