My grandma ...so speechless about her behavior

My grandmother is really weird each day , becoming more weird ....is this because she turning 81 this year ?

This is freaking weird , she always freak me out like accuse me for not doing this well , this and that .....*melo* i was sleeping next to her , when i get to sleep really late she would scream at me and want me to go to sleep ....What the ....? What is wrong with her ? Sometime she seem really ...I dunno .....I wish someone can explain to me the weird behavior of senior Adult ....yes Senior Adult