Hi, treeman65
I am sorry to hear about your loss. 
I lost my mum 3 weeks ago, she had a breast cancer which ended up spreading everywhere. 
To be honest, before I joined this forum .. I didn't even think that so many people die of cancer every day. It's a horrible disease, and I hope that one day it will be curable. 

I know exactly how you feel. I am not very good at giving advice. Keeping myself busy helps me. When I have things to do I feel so much better. 
I couldn't eat for 3 days after my mum passed away. But we have to eat! 

And I do understand what you mean about not wanting to talk or get out of the house. The only people I do talk to now are my partner, my nan ( phone calls, cos we live abroad ), and my uncle sometimes.
Really don't want to see neighbours, so I just keep my curtains closed... I know that staying away from people isn't great, but I just don't feel like talking to them. 
I sometimes message my friends on fb. I just like to keep my mind busy, and maybe help them out  if they're having a problem. 

Take care!! and please try to eat, even it feels like you don't want to..