You could still have cross contamination issues that you are not aware of yet. Be sure you are not accidentally getting gluten from old cooking pans, toasters, colanders, cosmetics or pet foods or somebody else's crumbs. Depending on the amount of damage you have it is going to take awhile to get healed up and be able to use nutrients. You might also have a food intolerance to something else, such as soy or dairy or another food group, and you will find yourself doing better once you get settled with what sort of food agrees with your body and gives you energy.
I found that once my hormones started dropping off after menopause, in my mid fifties now, my short term memory got worse, so I have to develop tricks to work around this, and just accept that the really good, effortless memory I used to have is gone and I now have the regular model. This means I don't hesitate to write notes about stuff instead of winging it from visual images.
I take a multivitamin, B complex, and a calcium/D supplement, and I eat a lot of blueberries.
This also means that if I want to continue to write things that don't sound like gibberish I have to discipline myself more. I was eating more gluten free carbohydrates early in the day, but that just doesn't work for me, and I seem to think better on proteins and fats. This means I went back to something closer to a specific carbohydrate/Atkins style first meal. I also have to exercise.