Have you had a test for celiac? It's best to do that before going gluten free. You can get them cheaply over the internet. I assume you already have an autoimmune disease - if you have a second one, you need to know. Not least because you should get your immediate relatives tested if so.
Do you have any symptoms which you think could relate to gluten - gut symptoms or any of those you find on a celiac site? Gluten senstivity and celiac symptoms seem pretty similar.
IF - and it's an if - you are gluten sensitive, the longer you've been eating it, the longer you will take to heal. I suspected for years I had some problem with gluten because I bloated in my early twenties if I drank beer or ate fish and chips. I tried a couple of times to come off it, but like you I found it too hard.
Finally at c 50 I did the Atkin's diet very strictly for 6 months. When I ate my first biscuit after that I bloated up to a six month pregnancy. Same with barley. Same with rye.
I didn't touch gluten knowingly for years and my body told me whenever I did. It took years before I realised my brain fog had gone. I'm still off, and always will be - now I can eat some gluten without bloating, but I know that just means my gut has finally healed a bit, and if I go back onto it it will be damaged again.
My 18 year old daughter can't eat gluten either without stomach pain.
Even if you go off it it won't necessarily solve all your problems - you have to take all the tacks out of your shoe before the foot stops hurting.