After suffering the symptoms of Celiac for 17 years before being diagnosed, I also jumped drastically in weight after I went on a gluten-free diet four years ago. By the time I was diagnosed in my 30s, I was drastically underweight because I was suffering from severe malnutrition (as my doctor said, I had so few villi that my intestines were akin to pvc pipes), but within six months of going gluten free, I had gained almost 20 lbs. By exercising 6 days a week and watching my diet for the last four years, I have lost about seven of those pounds, which still puts me 13 lbs over what I had grown used to. However, considering that I now have a BMI of 20, I have come to accept my current weight as healthy and "normal" for me now, as opposed to the extreme thinness that I had become used to during the years when my body was slowly wasting. I also bought clothes that fit the new me, which was hard at first, but I have also come to accept that I am no longer the size I once was, and wearing clothes that fit my body makes a huge impact on how I feel about my gluten-free body.