Still suffering

My stomach is so messed up from my cheat day still. I'm almost afraid I'm developing an intolerance to gluten. My sister has celiacs (spelling?) So I guess its possible. I kind of attributed hers to her diabetes. But perhaps hers is just more severe because of it. My stomach is usually fine with gluten in moderation. But my cheat days when I seem to eat a lot of it, I'm sick for days. :( that's just awful.
I don't know how I can ever take cheat days at this rate!
Yesterday was my grandmas party and we had so much fun! I stuck to salad all day. Maybe that didn't help my situation. I don't know!