hello :) I got sick about 4 years ago with IBS because I was having stomach symptoms that wouldn’t go away. A year later I got a blood test and had one of the two genetic markers for celiac. I eventually got an endoscopy and they found I had some irritation in my small intestine. I’ve also never had a colonoscopy. After that I started eating gluten free and corn syrup free(since that also bothers me) and I felt better within a few weeks. If you truly have celiac it may take longer, my doc told me people with celiacs could take up to a year to feel better depending on how much damage you have done to yourself. And yes I do have my good days and bad, depending on what I eat. Find out what your triggers are. It might take a while but you will feel better one day! Good luck and feel better!