stomach pain

I was just wondering if it is possible to sometimes experience pain after eating foods with gluten in it, but at other times, have no pain at all. Most of the time when I eat something with gluten in it (e.g. white bread), I get extreme stomach pains, but sometimes I can eat that bread and have no pain at all (but I do get bloated). 

Is this possible in someone with Coeliac’s, or is this something else entirely?