A few years a ago I had a misdiagnosis of something serious and ended up needing lots of surgeries to save my life...after it became clear (all along they kept saying 'you seem young a healthy' and dismissing me as 'anxiety' when I in fact had sepsis due to neglect / failing to investigate further) they have gone all odd and quiet and won't discuss it with me.
I tried gently asking for an explanation, after such follow up, via PALs. But they tried contacting the consultants and asking them and they had no reply. AIBU or if things go wrong, it seems to me they 'close ranks' and don't discuss it.
It's hard because an explanation, and looking at ways to stop this sort of thing happening again, would do much to help me get over what happened.