Vitamin D deficiency can contribute to rib pain. Chest pain stemming from the ribs ccould be costochondritis, which involves inflammation of the cartilage connecting the ribs to the breastbone. This pain can range from mild to severe, potentially mimicking heart attack symptoms, and is often worsened by breathing or movement. Other potential causes include muscle strain, rib fractures, or even referred pain from other conditions.  It will also help to chose vegetables low in omega 6.

Great question! Even if some individuals with celiac disease don’t experience immediate villi damage from occasional cross-contamination, it’s still strongly recommended to maintain strict avoidance of gluten. The immune response triggered by gluten can vary between individuals, and even small amounts may cause systemic inflammation or other symptoms, even if intestinal damage isn’t immediately detectable. Additionally, repeated exposure—even at low levels—could lead to cumulative harm over time. Strict avoidance of cross-contamination remains the safest approach to prevent long-term complications and ensure overall health. Everyone’s sensitivity differs, so working with a healthcare provider to tailor precautions is ideal.

Thank you so much.

You have one gene for Celiac.  You have a second autoimmune disease, Hashimoto's thyroiditis, which is frequently found at a higher rate with Celiac.  HLA genes carry autoimmune disease genes like Celiac and Hashimoto's and diabetes and others.   You have Celiac symptoms of reacting after gluten.  You said "I am however still suffering from the effects of the gluten challenge (food sensitivities, slight brain fog, weird stool, fatigue, swollen thyroid, bodyaches)."  And your anti-thyroid antibodies increase after gluten exposure.  While tTg IgA does not directly attack the thyroid, gluten exposure does trigger the  immune system to produce antibodies against the thyroid in genetically predisposed individuals.  You did not eat sufficient gluten (10 grams of gluten per day for two weeks minimum) to raise the autoimmune antibodies to the point they can be measured in the blood, so your blood tests may well be inaccurate.  You could choose to continue the gluten challenge of 10 grams a day for at least two weeks and get retested.   At the very least, you know that gluten is harmful to your thyroid, and because you are genetically predisposed to Celiac disease, a strict gluten free diet would be beneficial for your overall health.  

Thanks @Scott Adams! I guess my question now is: do the celiacs who can get away with regular contamination without villi damage as you mentioned have to be strict about cross-contamination ?