Everyone is very different so you should go zero gluten for 3 weeks or so. Bring back gluten and if no changes in energy, toilet habits, pains etc etc then make a decision from there.
Going down the gluten free aisle and buying products full of nasty ingredients isn’t going to help much but pay attention to packets of all sorts – you’ll be shocked how much is packed into various foods, watch out for wheat, barley, rye and don’t have even a tiny amount for the 3 weeks.
I’ve been GF for 4 years and my back agony has mostly disappeared, I don’t have hideous IBS anymore and so on. So mine is very much a necessity rather than a decision. If I make a mistake, I’ll go back to feeling terrible for up to two months.
Try to stay away from the GF aisle unless you just want to feel normal by eating pasta now and then. Vegetables, fruit, meat and fish are gluten free so it’s actually really simple.