This comes and goes. She will call sometimes and say she doesn't know where she is or what she is meant to be doing with the day. We have been seeing her every day and my mother has been taking her food every day, yet sometimes she will call us or others and say she hasn't seen anyone in a long time. The anxiety and memory problems can come and go. She has shown problems like these before but she went back to normal and it has happened again. Some days she can be in the middle of appearing quite bad with the confusion then will appear to go back to her normal self. It has been a few days now and she still seems confused. I am wondering if anyone here has had a similar experience with these deficits appearing to come and go and if anyone could shed any light on their experience or what it may be? Thank you for your help.
Check for medication interactions, dehydration.
In general she needs a full workup. She may be having small strokes. There could be several issues, many simple to treat.
Let us know what you find out.
As other posters have said, it could be a number of different things, and a thorough medical examination is important.