Sorry to hear about your loss Kev...

Like Jim said, this time of year it makes it even more difficult with Christmas coming up. And even if you didn't go and visit her in the hospital, she got your regards and knew you were thinking about her. Don't feel bad about not visiting her - it's quite understandable that you couldn't see her like that. At least you have a lot of good memories, and know that she had a good life.
My uncle's wife passed away two weeks ago, she had bone cancer. They knew about it for a month, and knew she's gonna die. They didn't tell anyone about it, and I totally understand, they wanted the last days to be just the immediate family. My mum had problems relating to that at first, but then she realised why they didn't want people to head over there with flowers and symphatetic words. I wasn't all that close to her, they kept to themselves a lot, she and my uncle, but it's always something that makes you think. And I know that she had a good life, and that their relationship was stronger. And at least they had a chance to say everything they wanted to say to each other.
What I'm trying to say I guess that it's always a shock to lose someone dear to you, and it takes a while. Friends and family is what helps you get by. A warm hug to you Kev, take care!