Anyone with gluten sensitivity or celiac?

ca

so in the past few days I’ve noticed some weird symptoms. With certain foods I eat (this last time it was chick fila chicken and fries). About 30 minutes after I eat it, I get this awful ache in my lower stomach, around my belly button area. It makes me feel bloated like there’s a rock in my intestines! Yesterday I ate organic oatmeal with flax seed and had a bowel movement but after hat chicken I had I’ve been backed up. Could this be a gluten sensitivity? I really don’t have much money to go see a doctor about this so I’m just going to eat the oatmeal until I find a solution.

Also, what is your diet? How do you eat out and still stay healthy?