Jay Montgomery consistently had felt uncomfortable after eating meals, but he didn’t think much about the bloated feeling he nearly always experienced.

Montgomery, who owns Goldmine Jewelers in St. Charles, said it wasn’t until he had a physical exam three years ago that he discovered his diet made him feel that way.

Specifically, it was the gluten to which he was allergic. He said he didn’t realize he was living with celiac disease and a variety of common foods, including bread and pasta, had been disagreeing with his stomach.