Sorry you and your family have to deal with this, especially with the corona crap on top.
My dad was diagnosed with a rare bile duct cancer mid 2017 and was told he had 3 months by the local docs. We convinced him to go to the Mayo clinic for a second opinion. They did a new experimental treatment with stents in the bile duct that allowed him to stay with us through January this year. His quality of life was actually pretty good until the last two months or so. I think the timing was actually good in a way, the lockdown started a few weeks after the funeral. FUCK CANCER
If your local docs aren't giving you the answers you want definitely check out Mayo or one of the other leading cancer facilities in the country.
and FUCK CANCER