A clinical examination & investigation is needed.
Thanks for writing your query.
After reading your post, I would suggest that you should get your wife clinically examined and investigated.
It seems that she might be having concussion injury
due to head injury
of head is needed for further planning of medical management.
She should take proper rest. Ibuprofen
can help in reducing the pain.
I hope this is helpful to you.
If you have any further query, I will be happy to help.