i am very sorry about your granddaddy and i hope everything goes good i am sure he will be fine. i know exactly what u r going through , my mom had kidney cancer and she got her kidney removed 4 days after she found out it was even there and then 2 weeks later we went snowboarding. it was a hard time but i think it was god testing me and my mom on our faith so he could be testing urs. so don't be affraid of what might happen because you need to have faith that everything will be fine. I really hope that helps i will be praying.