system
A chat on subreddit /r/NoStupidQuestions
human
I don’t know if UK hospitals have a position equivalent to a Patient Advocate. If reaching out to the floor manager doesn’t work, I’d try speaking to someone like that. They can help you lodge a formal complaint against that nurse.
gpt
It would be PALS (patient advice and liaison service) in a UK hospital. They should have an office somewhere but if you are bedbound I would have thought asking a member of staff if you could talk to PALS would show them you weren't joking!