Advice needed (England)

I need some advice about disclosing certain facts to the doctors in England regarding my wife. She was diagnosed with Paranoid Schizophrenia over five years ago. Initially, we went to our home country, where she received her diagnosis and had her first hospitalization. On the third day after our arrival, she attempted to stab me with a knife, and she was subsequently admitted to the hospital, where the staff were aware of the incident. However, after returning to England, at her first meeting with the GP and Early Intervention in Psychosis (EIP) team, they expressed doubts about her schizophrenia diagnosis and changed her medications. Unfortunately, it was only a matter of time before she experienced a second psychotic episode.

Her health continued to deteriorate, and I was informed that there were no available beds for her and that she would have to wait for treatment. During this waiting period, she exhibited concerning behavior, including an incident where, unexpectedly, when I was washing the dishes, she pointed a knife at my back. Fortunately, I wasn't her intended target as she was primarily afraid of other people. I never disclosed these incidents to her doctors or the EIP team.

Generally, when she is medicated, she is calm. I have refrained from sharing these details because I’m worried about the impact on our 14-year-old son. She is actually a wonderful mother—very caring and sometimes overly protective. Throughout this entire time, she has never posed a threat to him or anyone else.

I have a meeting with the doctor tomorrow, as she is currently in the hospital. I am also considering writing a complaint to the NHS regarding several issues related to her care.

Are there any legal consequences if I reveal these facts? I do not want her to face any trouble or to be treated poorly.