My mom has been paranoid, agitated, accusatory, etc. out of the blue for the last three weeks. She is not on any meds other than cardiac, high blood pressure pills and occassionally a very low dose of valium 2mgs. (yesterday she had 5mgs of valium to go through an MRI). She suddenly had a completely "normal" day yesterday, being the mom I have always known and love. I don't think it was the valium because she wasn't just calm, she was a completely different person and it began before she even took the pill. Is this typical of dementia or alz? I am so shocked and just praying that she could stay this way.