Time for an update.
I followed the low fodmap diet for about a month before discarding it. I made sure everything adhered to my nutritionist's standard and submitted a full food diary.
Meanwhile my symptoms got worse from many of the foods I introduced and she continued to push for me to introduce more.
I stopped, dropped all the problem food and have basically rolled back to a pure carnivore / keto diet for now.
I'm using a multivitamin to supplement my micronutrients until I can re-introduce plants to my diet.
I believe that I was over consuming sugar which may have lead to dysbiosis. Oddly sugars were the only carbs not causing me diarrhea or other gastric problems - but I believe that may have been from the altered gut bacteria.
And while my digestion was okay I had a lot of other problems, with my skin, emotional level, energy levels, etc.
My back has been badly broken out with fungal acne, I developed an infection on my face from shaving and a large hydradenitis-like lesion on my back.
The back lesion has been receding with daily application of zinc oxide cream.
The facial one I took antibiotics for, it went away and came back and now I'm using black tea compresses with fairly good results.
This weekend I started supplementing magnesium and I think it's definitely been beneficial, if nothing else, to my mental state and emotions. I feel much calmer, I sleep better and my emotions are a full range again instead of just shades of grey.
Plan is one month of zero-carbs followed by a slow re-introduction of generally safe plants like plantains, sunflower seeds, pumpkin seeds, strawberry, blueberry, cantaloupe.
I plan to avoid oats except in forms I can consume without sugar added, such as breading for chicken, or as a bread.
Added sugars are going to be eliminated and kept at a bare minimum as a "treat."
Oddly I even had a very bad reaction to some of my probiotic supplements, the Saccharomyces I was taking before (jarrow's I believe). The pills didn't even break down and I threw them up a few hours later.
