The fact that a week has passed since the fall without any serious event is good news. However there are some things you have to look out for and if present should immediately visit the A and E.
Loss of conciousness
Very severe headaches
It is not uncommon to have minor hedaches after falls or tooth removal and this can be managed with some analgesics.
on standing may be due to postural hypotension
which is due to several reasons and you must get her standing and lying down blood presure to check if she does have it.