She will ask me the same question over and over dozens of times and if I am not present she will call me 40 to 50 times a day. She will not stay home and has a "I don't want to be alone" problem. Attention span is maybe five minutes or less, and she cannot tell time or apply time to appointments. If a care giver is supposed to be there at 9 am, she starts calling that person as soon as she gets up, like 6 am. Cannot do "wait" at all. Her only reference to time is RIGHT NOW. Is all this common or does she have other issues?
Much of what you describe could be related to dementia but could be a host of other problems also. She really needs to be evaluated.
Make sure she gets a urine test in the doctors office. Many times a U.T.I. (urinary tract infection) can cause strange mental symptoms.