I am sorry that you have been getting such frightening news. My mother had stomach cancer that was also in her bile ducts. I may have useful things I could tell you, if you find out that is really your situation. My husband has a different kind of stomach cancer too.
As far as an immediate death sentence goes, my husband has stomach cancer and he was able to have a treatment plan and is still alive more than two years later. Definitely get your questions organized (I would make a list in my phone so I could not forget it). Listen carefully to what the doctors tell you. Maybe even write it down. Better yet, bring someone with you to write down the answers. I think that a diagnosis like that is so upsetting that you may forget some of the things they tell you. My husband is 63. I think that younger people, like you, can tolerate the possible treatments better than older people like my mother, so hold on to that.
Now, if they were to tell you there is no treatment plan and your cancer is too advanced (I hope this does not happen), as happened to my mother in 2019, they may offer you palliative chemo. I cannot be sure the treatment options are the same as in 2019, but I thought my mother was possibly making a bad decision to take the palliative chemo because my familiarity with chemo was how bad it made people feel years ago. I was wrong. The palliative chemo actually did extend her life and gave us some really good times together. It helped her feel better for quite a while, too.
Don't jump to any conclusions right now. It actually took quite a few tests before they figured out how advanced my husband's cancer was. They actually did exploratory surgery (as well as a number of other things) before proposing treatment plans. Is it possible for you to go to Mayo Clinic? I liked how they did all of his tests and he was ready for treatment within a week. They have a level of excellence that I have not seen anywhere else. Of course, I have never been to MSK so I don't mean to put them down.
Let me know what you find out if my mother's experiences may end up being helpful for you later. For now, hope for the best and I wish the best for you. I do actually, have another distant relative (in-law) that was able to have a much less aggressive treatment than either my husband or my mother. I hope that for you!
Thank you for your beautiful email. I appreciate and “heard” everything you said. I will stay in touch, but they are pretty sure it’s advanced and I feel like until I have a possible treatment plan, I can’t snap out of the negativity. But I’m trying hard. Thanks again. Also, I will consider Mayo for 2nd opinion. Good idea