So when I arrived in work this morning I received a message from my aunt to say my grandma doesn't have long left and if I want to see her I need to come soon so I have arranged to go up there on Saturday. I have spent the morning in my office bursting into tears which I get is normal. However I have just emailed my boss to ask if I can go home as I can't process anything that my emails are asking. I read them over and over but I can't work out what I should do. I also feel sick and shaky. Is that normal or am I overreacting?