Celiac And Interstitial Cystitis in Related Disorders & Celiac Research Posted October 5, 2008 · Report to Admin It's so nice to know that you're not the only one in the world with celiac and Interstitial cystitis! I've been struggling for a long time with both illnesses and I'm finally really moving forward. After awhile I finally got my stomach and gut healed and back on tract, but my IC was horrible! The pain was unbearable. I am very strict at keeping both diets, but it's definitely very tiring. Anyone else struggling adhering to a gluten free and IC diet? I'll keep being strict because it is so worth it! My bladder is finally calming down and the pain is more bearable!