I'm truly very sorry for your loss. I know exactly what you are going though. I lost my Grandpapa, who was more or less my second dad a little over a month ago at 81. He was the single greatest man I knew and it was a horrible feeling to have when it happened. It won't get easier, only more painful in concentrated moments. A song, or a smell sets it off for me and I am almost in tears no matter what. Be thankful you had the relationship you did, and also the time at the end that you did as well...