That's wild. How on Earth did you zero in on your issue? Was it a case of "literally nothing else would explain things, so I may as well get this blood test"?
And what do you eat on a typical day?
Nothing indian (all creamy, milky), very few asian recipes (i.e no sushi, I'm intolerant of the green stuff they roll it in), anything with coconut milk is a decent start.
Most "egg replacement" for baking contains stuff that I just can't eat, so anything baked is out of the question.
I was fortunate when I moved to Germany, my company's recommended doctor was the only one I could find who spoke english, and he was a sports physiotherapy specialist with a side training in homeopathy; for all that I believe it's quack science, the holistic approach to "maybe you have bad skin because there's something wrong somewhere else" was a valuable insight.
My health insurance paid the first €200 in blood testing (€50 basic panel, 150 wide panel), having established that there's no "cure", they won't insure the condition any further, but that's OK.