Suddenly Changed behaviour. To wo?

My mother has developed recent behavioral and thinking changes over the past few days. She has become very suspicious and believes that people are spying on us and trying to harm our family. She specifically thinks that my uncle and aunt, along with some local people, are monitoring us and have even installed a camera in our ceiling fan to keep track of our movements. She also believes that certain known people may harm us and that relatives are trying to turn me and my brother against her or take away our father’s job benefits. Along with these beliefs, her behavior has changed noticeably,she often murmurs or talks to herself, speaks less than before. She shows disorganized behavior such as preparing and packing food for people who are not actually coming, particularly during meal times, and if confronted she become angry and shout , currently she is on Clonafit Plus at night and OleAnZ 5 at afternoon advised a general physician, which makes her sleepy in the evening , no energy to wo