Does a lot of pop in one day like 4 cans can it make you feel bloated/you're stomach feeling as if it's stretched from the inside!?

With all that fizz?: Feeling full of "gas" may reflect malabsorption of food (like gluten, lactose), intake of poorly digested food, or choosing foods known to promote gas (beans, fizzy drinks). Sometimes its more complicated--a stomach emptying too slowly, bacterial overgrowth syndrome, delayed intestinal function, partial obstruction from any cause, infection, rectum problems, & pelvic pathology outside the gut.