Just go look on some of the questions on Bradley I'm sure you'll find the answer there
A... the production of breast milk happened afterbirth
According to my calculations I would say you ate something unusual or ate to much of something that made your stomach feel unpleasent
Answer:
Regular physical activity can improve your muscle strength and boost your endurance. Exercise delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores. Regular physical activity can increase the production of hormones that make you feel happier and help you sleep better. A number of studies have found that exercise also helps to ease depression.