Rob,
I'm so sorry you're going through this. My dad passed away from esophageal cancer 6 years ago and my mother now has terminal brain cancer. She was diagnosed last December. She is now in a nursing home and doing ok, but mentally we see her deteriorating more and more. It's like losing her a little piece at a time. She still understands everything we say, but she has trouble with her words because the tumor is near the speech center. She actually had two brain tumors, one of which they were able to remove. She's 80 years old and she's been such a trooper. She's gone through so much and I'm so proud of her.
I completely understand about feeling numb. I am extremely close to my mom and I know when she's gone I will be devastated, but most of the time I walk around just feeling nothing. I think it's because if I let my emotions come to the surface, they will overwhelm me. Right now I know I need to stay strong for her. I do have times every month or so when I just completely break down, but for the most part I just keep going. I'm on part time family leave at work so that I can spend a lot of time with her. I feel guilty though, because there are days when it's emotionally exhausting being with her. I'm almost relieved to go home, then when I get home I miss her and feel sad. It's also hard when you see other people just going about their day and you can't remember what it's like to have a normal life anymore.
Anyway, I've rambled on enough. Please know that my thoughts are with you. Sometimes it helps to know that other people are going through a similar situation.
Kimmie