Welcome to steemit Gary, I'm sorry its not a nicer reason for coming.
My family has been down this road a few times...
Once with my uncle and again with my father.
Nothing prepares you for this horrible news and as hard as it may seem being positive and looking forward is the best way to deal with it.
We are in the best position ever to battle this horrible disease now so keep up hope! There has been a lot and is currently a lot more tests being done on cannabis as a way of treating certain types of cancer. I don't know if this is an option for you but i hope it could be.