has anyone else get like this

I'm 20 and my grandfather passed away last summer. This was the first death of a family member that I remember. It just feels like he got sick and disappeared. I'm not sad but miss him and so does my family. I guess it's better being this way I just feel like me and my family should be more upset but life just goes on. I just feel confused about this and would like to know if anyone else has felt like this. I'm not sad I was shocked at first but I know he's in a better place.