Daughter 46 has advanced colon cancer

I yoyo between hope and despair, according to her newest scan results. Her husband does all medical appointments, and I help with the 11 yr. old when help is needed, which isn't often. She is on her third different chemo drug; she is so brave, always going into work when she can. We do talk, but not enough for me. She is so busy with the kids (older one is 15) and their activities----says she wants to do things herself when she can. The yoyoing is taking a toll on me---I am 72 and in good health. My son was killed at 32, 15 years ago. I know that pain of loss.