She is arguing it seems with everyone. She is 83 and has decided to drive from ARK. to AZ. with her cat and dog in tow. She almost sounds manic, won't listen to any advice or it starts a fight. Don't say anything to contradict her because she hangs up or gets mad. It seems like there is no reasoning with her. Any advice?
JessieBelle could be right - maybe she's out for kicks and only got mad when people started pouring cold water on it. But if she was giving you some story about how it was crucial she did this, and nothing must be allowed to stand in her way, vital mission etc etc etc - well, then it would yell "psychosis."
Hope your brother fields her successfully and all is well.
Call her MD Monday AM and find out what you can about her health.
OTOH, if she just wants to enjoy life and is still able to drive well enough, I would say let her enjoy. Sometimes older people just want to have fun. (Sounds like a good song for Cyndi Lauper now that she's getting up in years.)