Final update. It has been Histamine Intolerance . One of the pills the nutritionist suggested was N-Acetyl cysteine. It gave me horrible headaches, which is a hint for Histamine Intolerance . I have cut back on my dairy, alcohol, gluten, chocolate, tomatoes, spinach. And the headaches are going away. My menstrual cycle is normal for the first time in my life. No bloating or brain fog. Tons of energy.