Your life sounds very similar to mine right now,  i feel kinda crazy like i don't feel normal,  this scared feeling is so heavy and like you say , what  will happen To the closest should they lose their world :(? What can we do for them , and where do we deal with our pain and loss , it's the biggest painful lump i have ever felt in my throat so far in this life,  it's my dad who im losing and there is nothing we can do other than make them smile as much as we can , it's the best Medicine around when things get so dark , i hope you got some rest eventual,  happy New year,  make yourself a promise , walk in your grandad honour for your nan , ask him about their first date , first meal , first holiday,  first car etc and recreate it all bit by bit , create their memories for the good of you all xx