Dear Terry,
My spouse was miss diagnosed for years with GERD. He has a "heavy tumor load". He required surgery to by pass a large tumor. This helped. They put him on a Lanreotide shot that has stabilized the cancer for the moment. Unfortunately, he has had complications from both the surgery and side effects of the drug. But it has been the best option for him at this point.
My advice would be to take one day at a time as it gets overwhelming. There are good treatments available.
Wishing you all the best.