Oh fuck that. I would get a second opinion. At least now you know to underplay it. "I think it's working, yes. Sleeping better and feeling a little better, no side effects that are bothersome, this one seems good, thanks."

Oh no, they shouldn't make you feel too good!

Sometimes antidepressants can unmask bipolar disorder and cause manic episodes

Unless mania or hypomania was present previously in a patient, this would be more about the drug's effects than revealing a pre-existing condition.

I am not satisfied with that answer. You got bipolar mania from an increase in happiness, which doesn't sit right with me. And he was prescribed antipsychotics, which are treatment for mania. It seems to me to be a case of an unexperienced doctor ceasing treatment because he was afraid of an unexpected result.

Most doctors I've spoken to have been quite happy to work with me rather than against me.

The unfortunate trick is you need to self educate to speak a bit more in their language. You also need to accept they are often working within rules that are unintuitive.

E.g. I prefer a particular brand drug Vs the generics. (The delivery method was slightly different) I had to cycle through the generics so they could tick them off in the system. Otherwise it would try to automatically shift me to a generic.