I'm so sorry . That's horrible.

I went through a similar situation in 2010 with my grandfather. He and my mom were the ones that raised me and he was like my father to me. He was diagnosed with stomach cancer in September, took radiation, and went downhill and passed away in October. It was a terrible time in my life, but I made it through it and know that he's no longer in pain anymore.

The best thing you can do is remember all the good times with your grandmother and not her sickness, like you said. It's good to come to terms with the loss before it happens, that helps so much.

Sending you hugs and best wishes that your grandmother goes easy and doesn't have to endure too much pain.