Anyone with the same horrible condition?

Is there anyone like my friend who has been diagnosed with diverticulitis, Sjögren, vasculitis, lupus and is severely allergic to any kind of food? She was in hospital last year for two weeks but none of the 5 gastro-enterologists there is familiar with auto-immune disorders and even though she's had a colonoscopy that showed severe diverticulitis they don't even believe she can't eat( not even chicken broth ) without having awful pains in her intestines. She's been to reumatologists, endocrinologists... she feels really desperate. Last week there was a little hope as she went to a dermatologist-allergologist who confirms he has never had any one like her who is allergic to almost everything... but he has no cure either.

HI I have diverticular disease, lupus, sjogrens and PBC (liver disease) im not allergic to any foods that l know of but there are certain foods l cant eat because of my liver