I tell him little.
He thinks my tattoos are self-injury even though they are years old. He thinks my desire for more is self-injury which it is not.
When I went through a not so good patch he said he wanted to change my meds. I expressed concern and he said we would taper off one as we introduced the other. I agreed but wasn't sure. Next appt when it was due to be prescribed he said that he had never said that and I would need to stop my meds, be drug-free and then go on the new one. He did not seem to care that doing so would have a colossal impact, that I would lose my job, stress my family and probably be sectioned. So I refused to change. He didn't push that.
So I think whatever I talk to him about he will twist it to someone he wants/needs.

That said, if he decided to diagnose me himself and not rely on years on written notes from docs in training through to a consultant with fixed ideas then I might trust him more.

But until then I answer what he asks and am careful how I elaborate. I'm not entirely okay but I function enough he can stay at arm's reach.