Can not figure out why my tummy looks like im pregnant daily. It used to be flat in morning then grow during day now its large in morning and gets bigger during day then goes down to large again.I have been tested for so many food related issues but nothing came back. I have tested positive for Pylori which i need to be treatment for (3rd time) but this can not only be the reason. Fed up as im 5ft 5inch 40kgs with a fat % of 9.5 and bmi of 15 so im no wear near overweight. Anyone else get to the bottom of this issue?