I've ate normal foods over my whole life. It would make me exceptionally bloated, gassy, and constipated, but when I switched to gluten free foods, my stomach began getting this weird rumbling when I'm not hungry. Almost every food (gluten free) that I eat also causes some sort of symptom. Like it won't digest my food. Only like 3 foods don't upset my stomach into gas and rumbling- bananas, gluten free oatmeal, green beans. I'm worried I have a stomach infection or paracite. I already took a blood test but it came out negative. My stomach even causes me to wake up in the morning every time now.. I don't know what's wrong!