But if she doesn't have a diagnosis, how does she know that avoiding meat is a resolution? There could be other, as yet unknown/ yet to arise consequences of the condition.
People are advised if they get a tummy bug, just to drink plenty of fluids and bother the doctor about it.
But a lot of cases of IBS are due to previous tummy bugs. The IBS is a complication arising from an untreated infection.
What is emerging is that a short course of anti-biotics plus steroids (IIRC) soon after a tummy bug could save thousands of people from years of misery and the NHS a fortune in repeat prescriptions for IBS drugs, never mind investigative procedures and so on. Similar connections are mooted to IBD and even gastro-intestinal cancers.
Medicine is an evolving field- plenty of things are connected that we are only just becoming aware. There are things theatre connected that we are currently totally unaware of.
People pushing for answers is part of what gets the dots joined up and medical discoveries made and new treatments discovered. And I don't just mean new drugs, I mean sayings of using existing medicines and techniques in a novel applications.
Looks like some cases of incontinence in old age are caused by a low level bladder infection. It is often not spotted because urine samples wait hours/days to be tested. If they are tested "bedside" then the infection can be detected.
Then a course of antibiotics combined with regular testing is effective at curing old age incontinence. The course needs to continue for a couple of weeks after the infection drops to levels undetectable in a fresh urine sample.
How many old people live in misery, how much does the NHS spend on care, that could be saved just by changing some procedures?