I too have a damaged vagus nerve after delay of 6 months to repair an organoaxial volvulus stomach and possible reactivation of varicella virus, I now also have bleeding esophagus
I am appalled by the lack of dietary advice available to patients in the US. I now google every food, tea, spice, or herb that I might eat and ask is it OK with Gastroparesis, weak LES, and bleeding esophagus and have been pleases with the amount of advise given, You might want to give it a try as everyone has such different food tastes, it helps to be ,ore specific im stead of relying on generic food lists, I also requested pelvic floor PT to help with exercises and breathing exercises to strengthen the diaphram and the the vagus nerve, You can also google vagus nerve strengthening and find things like humming, singing the vowels, massaging ear lobes, facial yoga exercises, cold water to face, diaphram breathing exercises, but I would definately try and get in to see a pelvic floor PT expert, and if you had history of chicken pox, ebstien Barr virus, CMV, or HSVor covid ask your PCP about possibility of reactivation of a virus,
US healthcare system is terribly broken, Doctors are now treated as interchangeable linemen and we are basically fungible articles for billable hours on the comveyor belt. Doctors don’t have time to to do a thorough assessment of patients with complex issues, often sent to many specialists, who are so siloed into their specialty they are unaware of how all our systems work together or impact each other or how medications affect nutritional status, There is a lot of junk science on the internet, but I rely on information from the NIH mainly with some from other reputable medical journals, I usually print these off and take them to my appointments to ask the doctors opinion, .good luck , this is no easy DX, but I think found the right healthy food , exercise, proper sun and fresh air exposure a long with the inherent wisdom of our bodies amazing ability to heal is worth a serious pursuit,