Has my employer broken any law?

I had an accident at work and went to hospital for a check up. Luckily I did not suffer any serious injury, but the hospital reported my accident to Health and Safety. They carried out an inspection of my workplace and my employer was furious. He wrote to the hospital asking them to reveal patient confidential information about me which they refuced to give, but I received a letter from the hospital informing me that my employer had sought this information and copied me their response to my employer. My empoloyer now wants me to give consent to the hospital to reveal what was said by me about my employer at the time I reported to the hospital about my accident. My employer is convinced that I pesonally contracted Health and Safety to report my accident which resulted in the inspection of my workplace. My employer has shown that he distrusts me and does not believe my side of the story, despite having not incriminated my employer or the business. Has my boss the right to ask for my consent to seek more information about my hospital attendance? Or is he overstepping his authority. I have not so far made a claim against my employer, but his actions appear to be out of order. Am I right to seek legalm advice and if so what could be a possible outcome? Should I sue him over this?