I still think your pancreas may be the issue.
D-lactic acidosis should be looked for in cases of metabolic acidosis in which the identity of acidosis is not apparent and the patient has short bowel syndrome or chronic exocrine pancreatic insufficiency
with high level of D-lactate.
The clinical presentation is characterised by episodes of peculiar neurological manifestations and severe metabolic acidosis.
In this patient D-lactic acidosis was diagnosed on the basis of D-lactate level of 5 mmol/l and clinical presentations.
Low carbohydrate diets, bicarbonate given intravenously as well as rehydration, and taking poorly absorbed oral antibiotics may be helpful to control symptoms.
This site mentions lots of nutritional stuff relating to this. Do you understand exactly what nutritional problems you have? I mean all the nutritional issues you may have?
Bacteria feed on undigested sugars that remain in the intestine and that in turn are converted into gasses and acids (D-lactate) and other microbial by-products. These acids in the small intestine damage the intestinal wall and cause abnormal brain activity and behavior because they travel to the brain via the blood. Likewise the nervous system and brain can be affected by the malabsorption of vitamins and minerals. Thus these intestinal disorders may cause epilepsy, schizophrenia, confusion, aggression, disorientation, blurred vision, poor judgment, offensive behavior, indistinct speech, unsteady gait, rolling of the eyes, amnesia and eccentric behavior. For the sake of completeness, it should be noted that digestion largely depends on the digestive fluids of the pancreas
I honestly think the pancreas is more important than most medical professionals recognize. Nutritional issues will cause problems with the pancreas that cause different types of digestive problems. But I would think that with the right nutritional approach this problem can be corrected.