Why do stomach aches and breath occur?

Namaskar doston is video mein pet Dard Kyon Hota Hai running karne ke bad aur shasan Kyon ful Ti hai running karne ke bad is bare mein is video mein bataya gaya hai mujhe lagta hai hi ki aapke pet Dard aur Saans fulne ki problem isliye hi hoti Hogi

occur?