I've been off gluten for about 5 years now, I think what the others have said makes sense the only way to try a GF diet is to eliminate it for at least 3 months. NOT EASY it really is in everything. Have to plan meals religiously and no grabbing a sandwich whilst out (my biggest complaint) shopping, trips etc. Potatoes and rice make up the bulk of my carbs plus a small amount of GF bread which has something in that my body doesn't like as well but hey we can't have everything.. Good thing is there are GF noodles, pasta etc available now too.
I used to buy GF bisuits but as I don't have sugar normally this was a problem, so I started making my own a while ago, I'm no baker but these are passable with a coffee (de-caff of course)
GF biscuit recipe
6oz rice flour
3oz sunflower spread(I use Pure)
1 small teaspoon of stevia (depending on how sweet you like things)
1 tbsp dessicated coconut (optional)
3 ginger capsules opened or a small amount of fresh ginger(optional)
1 egg
milk to bind
Rub butter and flour together until fine breadbrumbs, add dry ingredients, mix in egg and enough milk to make a pastry type mix. Dust with flour and roll, cut into biscuit shapes 1/4-1/3inch thick, (thickish biscuit they dont rise) bake on greased tray 160o fan oven for about 17-19 mins, will be pale golden. Check after 15mins though - don't leave them the first time. They keep in a tin for a couple of weeks.
I am going to make them with orange zest/little bit of juice and ginger next time leave the coconut out. Could add raisins etc. Whatever you can tolerate.
They only take a few minutes to make, I get the ingredients out the night before to save energy.