Memory Loss

My wife is 67 years old and is suffering from memory loss and hallucinations and sometimes mood swings.
I have taken her to our primary care physician and had blood work done and a cat-scan of her brain.  All tests were negative.
She was supposed to go to get a psychological evaluation, but I can't seem to talk her into going.  She thinks that nothing is wrong and that everyone her age is going through the same thing.
Her physical health seems to be good; she takes no medication.  Can you give me some advice as to how to convince her to get further testing?

Thank you,
Ben

[HFHS-M.D.-HG]

Dear Ben

It is not common for any person at any age to have memory loss and hallucinations along with mood swings. I recommend her to get complete psychiatric evaluation from a trained psychiatrist as early as possible. You may want to convince her through people whom she trusts in. Some literature on memory loss and hallucinations may help her understand the need for treatment.

Sincerely
HFHS-M.D.