i feel bad

so back in january my grandparents tested positive for covid, my grandpa is back doing fine but my grandma is not at all, she thinks people are at here house that’s not, she thought me and my baby were over there and left while she was asleep and she went outside looking for my baby, yesterday she fell down garage stairs and then she tried to put a stylus pen in the plug in the wall.. some of us think it’s early signs of dementia maybe or she had a stroke maybe that no one knows about ?? and my aunt said she has “long haul covid symptoms” ?? idk im just scared something is going to happen to my grandma 🥺