My brother and his family just visited from out of state and I think it really wore her out mentally. They visited off and on for 5 days. They didn't call ahead. We had a few hours warning when they were already in town. She's been more confused and mad since the visit. They left 2 days ago.
Is she on any meds for agitation? If she isn’t I would ask her doctor to prescribe something for her to calm down.
So sorry that you are having these issues. Wishing you peace.
Consider she might have a UTI and have her tested.
If she is well, then it will be some days before you know if this is permanent or not. Given the circumstances and the suddenness I suspect she will be back to her normal level, but do know that this IS the future and you may be looking at a time when LTC needs to be considered.
Hope you will update us.
If small children are there, remove them if they seem to upset her. My grandson was 3 when Mom entered an AL. She and the residents loved seeing him. But he was a go go child so I did not stay long.