Please keep faith and be defiant to cancer, do your best to stay strong when strong feels distant. I am also Stage 4 esophagus, with my cancer also located in the lower part of esophagus. My cancer also affected lymph nodes all over my stomach but I didn't have it travel to other parts of my body. My oncologist has me on Folfox (probably spelled wrong) and Keytruda, I have had over 12 chemo treatment 3hrs chair 48hrs take home bubble and approx 6 Keytruda treatments. I literally just got back from getting a second opinion from MD Anderson in Houston, it was a wonderful experience, everyone their was so nice and very detailed with their explanations. I am fortunate that I have done real well on my treatment regiment most people would never guess that I have cancer. Im a a bit less energetic and due some memory and speech issues along with neuropathy but Im still active. I went their hoping for the magic cure but was pleasantly advised that what my local oncologist has done for me has had amazing physical response and that they would not recommend any changes to my treatment at this time. Please stay positive, I went from liquid diet to eating normal from loosing weight to maintaining weight. Good luck and prayers on your journey, I think it was Mark Twain who wrote worrying is like paying a bill you don't owe.