Kim,
I read this and thought, "because that's where you are in this...." I had that same question over and over and over again. I just felt insane because it felt like every moment for months and months was about Mom--about her illness, about her death, about her diagnosis.... looking at it over and over and over again. I'd think of different things at different times and think that I'd just be taken over and wonder if I was "ok" and wonder if it would ever be different.
I am not one who says, it gets 'better' or 'easier.' The hard days are still hard... But I will say that a smaller percentage of my days now are devoted to reliving those things. That DOES NOT mean that I've let them go, or forgotten them, or gotten over them. I never will. But... I'm able to let more of life in. You are going to get there too, and it might sounds scary now because it soundsn like you'll lose that much more of her. But you won't. It's all still there for me, but I can walk with it.
I can tell that your Mom loved you, Kim. And you were such a good daughter to her. Hang in there. It just hurts so badly.
(((((Kim))))))