I want to eat but i cant?..?

okk well lets just start out by saying i have had eating issues in the past and i was kind of over them (in and out) but now my grandpa has been dying this last week has been really bad and ive been soo stressed out to even eat and today i havent even touched food and its 5 pm and im not even hungry. (ive lost 8lbs just this week) and i dont know i feel guilty to eat while hes suffering will i feel hungry again once everythings over with?? and im a person who hates eating when they dont feel hungry what do i do?