the size of your stomach shouldn't be a factor in not feeling full. if you were used to eating large amounts of food due to your disease your body likely got used to that. now that (i assume) the celiac is under control. you are still eating the same way but your body is now absorbing the food. weight gain can also change hunger hormones increasing appetite further. i suggest getting help from a dietitian who specializes in eating issues. there are lots of tricks to helping feeling full including choosing filling food and being mindful while eating. you can find a dietitian in your area by going to eatright. org more reading. 9 surprising facts about your stomach satiety: the secret sauce to weight control
is it possible for one's stomach to expand to an enormous size after years of binging? i have never felt full. i was diagnosed with celiac disease in 2013 at the age of 30 but was showing symptoms when i was 10. i have always eaten large amounts (at least 4 times normal serving sizes) and never gained weight. after diagnosis i gained 100 lbs. and i can't manage my weight. i try to eat until i feel satisfied but i never am satisfied. i never feel full if i overeat.