That's messed up.
My building manager found out my husband has bipolar due to some strange behavior and my attempt to excuse it away as not to be evicted. Like a year later he made some comment about stuff in the building being missing and asked if he might know anything, I was like, "why would he know anything about that?" And the guy went on about "as long as he is on his meds..." He's not

and OH was I angry!
He also went around telling all our neighbours to be on the look out, maybe I should tell the idiot I'm bipolar and "off my meds" too
But, what good of being angry?
Hopefully your idiot supervisor stops asking now and you can move passed this.