Why do i get a pot belly when i breathe out but normally have a six pack?

A pot belly appearance when breathing out could be due to a relaxation of your abdominal muscles, which allows your stomach to protrude slightly. This is normal as the diaphragm and abdominal muscles work together during breathing. Additionally, factors like bloating or food intake can temporarily affect your abdominal appearance. Even with a six-pack, the natural dynamics of your body can create variations in how your stomach looks at different times.