Are you prepared to sue?
Well, it is not that simple.
Is she saying things that are untrue?
No, she can tell anybody anything that she likes.
There might be the mildest issue under the DPA but that is a waste of time. It is arguable whether it applies anyway.
What she cannot do lawfully is say thing about you that are untrue that cause substantial damage to your reputation.
I'm not particularly clear here what is saying that is untrue.
I understand the description above but that doesn't really clarify.
She would have a defence of fair comment and then all she would have to show is that it was a reasonable comment in all the circumstances.
It is not clear here why she might think you were not injured? If you can give me more information about that I might be able to offer more.
Why might she think you weren't injured?
You could argue that is a defamation.
I suppose the problem may be that you would have the burden of proof which is always a risk with defamation.
But you could probably get a solicitor to write to her warning her of the law.