Stress belly is not a medical condition, it is a sign of how stress and stress hormones are affecting your weight and especially belly fat.
The high levels of cortisol, the primary stress hormone is associated with abdominal fat. The hormones get produced in the adrenal gland and help in controlling blood sugar level, metabolism and many other important bodily functions. Cortisol is a part of the body’s fight or flight response which occurs when faced with a crisis. When in stress, the cortisol levels rise to give you a surge of energy to help you deal with the stressful event. After the stressful event is addressed, everything returns back to normal.