Fireflash

I'm a 17 year old male with no family history of celiac/gluten allergy. But i do show the following symptoms:- Poop floats in water (always has, always does and is sticky) smelly farts and stool I'm quite underweight (185cms, 64 kgs, 18.7 bmi) My weight never ever increases (7% bodyfat constant), but it does not decrease either Thin hair with itchy...