Have something happened to u in the last few days to increase the hallucinations of her u are seeing? Bc they could be related to something bad happening in ur life. And seeing these hallucinations is not normal. You should definitely tell someone u know irl about them incase the hallucinations get worse. I suggest u keep holding on to lunchbox memory so u never forget. If u still got her stuff then make a memorial to her to distract urself and to make something for her that she be proud of. Also just keep loving ur pets like u are loving them now. They will appreciate every thing u doing for them and if need be love them as much as u did lunchy so u don’t forget her. Just try to find a way to make her memory stay with u forever if that’s a memorial/something out of all the stuff u keep of her, pictures, videos etc. And tell people who u trust about this bc that’s important for u to do. Don’t keep this to ursekf and people on Reddit bc u need to tell someone about them irl like ur mother. And I hope this helps and sorry if it doesn’t. But hold on to her memory and make something to remember her by like a art with all of lunchbox stuff. Stay safe.