My heart bleeds for you as well at this horrible news, @Me2 .
I hope your pain medication is working efficiently .... have you considered looking at Cannabis Oil for pain relief? Some with advanced diagnoses have had amazing success with that .... even regressing tumours.
I know if it was me, I’d be angry, pissed off and upset, Same as you.
hopefully they’ve got it wrong and you can prove it to them by living as well as you can for as long as you can, spending quality time with your family, and creating new memories with them.
What ever you do from now on ... do it for YOU and the family xxx
Thinking of you xxxx