Better go A&E now because that's a sign of internal bleeding
and the blood clot might have pressed onto a nerve and thus the
memory lost. If she still refuses to go to A&E and get a X-Ray
done immediately, her life will be in danger. It's not something
minor. Such cases needs immediate medical attention cause if it's
being dismissed as something not important, in the days to come,
she might get stroke or fall into a coma as the nerve get
pressurised further.
It's just an accident and I don't find it why she doesn't wish to
tell her parents. As a friend, I think you should strongly bring
her to A&E now. Personally, I will rather take the choice of
losing a friendship than to lose a friend. Think about the Pros
& Cons.
If she still refuse to go A&E, I will suggest that you find her
bestfriend or boyfriend and tell them about it. It's not a joking
matter.
