Gluten are large complex proteins that are aren't completely digested. As we age, and if someone has a damaged GI tract then gluten can cause digestive problems, including infammation. I have celiac so have to be gluten free. I got covid in March at the same time as getting glutened, so a double cytokine storm. It could take a week or more before you notice any change because it takes some time for the intestines to heal and any associated inflammation to subside. Best wishes on it helping to heal you. Covid is pretty horrid. Gluten-associated inflammation can hit outside the GI tract. It also impacts my skin and nervous system.