wlmsn
I'm really glad you've seen this, because the most interesting way of viewing the framework I've described is in the context of someone who adheres to the diet I describe but still has symptoms. I know you say you only eat dairy 3x year, but that seems infrequent enough that it should not have too much effect if we consider Neu5Gc alone.
The best point I can make to you is that Neu5Gc is a discovered and well researched food born cause of autoimmune disease. There are certainly others that we do not know about or why it has an effect, for example, we know gluten in cereals causes the auto immune celiac disease though we don't know the science as to why.
There are likely other things in food other than Neu5Gc which will have similar effects, in that they trick susceptible people's immune system's into thinking there is an infection. Unfortunately, in the absence of hard science you will need to discover them yourself. But I can give you a very handy hint to make it easier. The closer the chemical is to what is normally present in the human body, the weaker the immune system response will be, but the longer it will last. This is because our immune systems are designed to avoid attacking our own bodies, but they will if forced to. Now consider gluten, in susceptible people this produces a strong and immediate response, because gluten has no human analogue there is no reason for our immune systems to go easy on it. With this in mind, veganism is a sensible approach to take, because it cuts out animals which are close to our cell biology where we'd expect low and slow immune responses. Instead you'd only see the much more rapid responses to plant based food allergens which would be much easier to observe and eliminate in the future.
So I suppose my first piece of advice would be to track what you eat and correlate it to your general inflammation symptoms, being aware that the effects of animal foods can have a long lasting effect that won't be easily spotted day to day, but rather month to month and year to year.
My second piece of advice would be to be very sceptical. Our brains and immune systems are extremely complex, so our experiences and causes could be completely different. Given the slow timeline over which I saw improvements, I'd only encourage people to follow my path if they also want to make general improvements to their health.