I looked it all up and read a lot online afterwards, his procedures were immaculate and complete including all the blood work he had ordered, beyond a normal checkup, left nothing left to ask for given the symptoms I had presented. His diagnoses was 100% correct and according to all guidelines in the modern medical world, whether you are in Europe or the US.
Except that nothing made sense.
He completely ignored when I told him that I had never in my life had so many issues as with the PPIs. He asked me to be patient, just a few more weeks and we could lower the dose. But in addition, I felt that 99.9% of all my problems were "unaccounted for" in that diagnosis, that it only was about one tiny issue, but I felt it was much more systemic and that the recommendations would do nothing whatsoever towards finding a solution. It was putting buckets under the leak instead of finding the leak in the roof and fixing it. But I found that it was perfectly normal not to look for the deeper explanation, the cause of problems such as I had had!
First thing I found after a few weeks was that I had a huge candida outbreak. The professor had ignored the symptoms, I found the description on some website that I thought was entirely bonkers and esoteric, which is why I ignored it at first. But after weeks of no solution, and it got worse, I went back to that website and checked other ones too. I thought, it must be candida! I got an oral anti-fungal (cheap, no recipe required) - and within 15 minutes I had confirmation that it was a fungal infection. I went to a doctor with the diagnosis and got it confirmed, and I even got systemic anti-fungals (fluconazole based), all of it with huge success.
HOWEVER - I soon learned that a fungal infection isn't a cause, it is itself only a symptom. The only thing I found that was a remote possibility was: heavy metal poisoning. I did a test, I searched for specialists, I had to go travel a few hundred kilometers to an environmental medicine doctor at a university clinic, he said I'm a gray area case and I must have something else but that I should start chelation. He never found anything else, and ALL problems I ever had slowly disappeared, including miracles such as the thyroid thing. The prediction about "PPIs forever"? I have not taken one since 5 weeks after the professors prediction and my gut health now is PERFECT, like I never knew it, not even in childhood.