Please inform yourself before diminishing others' plights.

Diarrhoea that is characteristic of coeliac disease is chronic, sometimes pale, of large volume, and abnormally foul in odor. Abdominal pain, cramping, bloating with abdominal distension (thought to be the result of fermentative production of bowel gas), and mouth ulcers[35] may be present.

Coeliac disease leads to an increased risk of both adenocarcinoma and lymphoma of the small bowel

Long-standing and untreated disease may lead to other complications, such as ulcerative jejunitis (ulcer formation of the small bowel) and stricturing (narrowing as a result of scarring with obstruction of the bowel).

https://en.wikipedia.org/wiki/Coeliac_disease

Have you ever had gluten free pastry?

Yes, I've had gluten-free pastries before. My friend has Celiac and can't consume gluten due to possible intestinal damage.

He has taken me to delicious gluten-free bakeries to get ice cream cookie sandwiches, pumpkin bread, brownies, garlic parmesan bread, quiche, meat handpies, etc

Just because you had bad ones doesn't mean they are all bad. Same goes with other food.

I mean you can choose to power through it. I'd sooner have a windy, achy gut than eat a gluten-free yum yum.

Well, if you had celiac disease, good luck living with permanent damage to your intestinal villi.

Are you seriously comparing devastating and life threatening diseases and bodily waste to food that thousands of people eat every day without complaint?