My mother thinking a lot n always in tention and because of that suddenly she doing unnecessary thing talking rude to anyone don't know is that a mental issue or something els.  I mean her behaviour suddenly change ...don't know what is that plz suggest me what to do..i am worry about my mother's condition...n it's happen with in 2 months..if she is fine for one or two months n after than 1 months her condition like what I said earlier ..