You could have low levels of body fat and still sport a bloated stomach. That’s because inflammation in your digestive tract, as the result of a food allergy, is making it swell. Wheat gluten, soy, and dairy are common allergens, and even if you haven’t noticed a problem with them, minor amounts could still be doing you harm.
Avoid these foods most of the time and see an allergist for a food sensitivity test to know for sure. At the very least, cut these foods out for a few weeks and see how you feel. Typically, if you’re sensitive to a food, you’ll notice less gas, bloating, and fatigue after a few days of being free of it.