It is likely she needs reassessment from the mental health team.
Has she a CPN? She also must have a consultant, if so speak to their secretary to make an appointment.
Also if she is getting more confused, then she may have a delirium possibility due to a urine infection.

But in the 1st instance she needs a review, especially if she is or not on any anti psychotics such as risperidone or halopeladol to name but 2.