NutriStrategy provides an overview of nutrition, nutrient food sources and the functions of vitamins and minerals in the body. CALORIES are needed to provide energy so the body functions properly. The number of calories in a food depends on the amount of energy the food provides.utriStrategy provides an overview of nutrition, nutrient food sources and the functions of vitamins and minerals in the body. CALORIES are needed to provide energy so the body functions properly. The number of calories in a food depends on the amount of energy the food provides.
Physical symptoms of stress include: 1  Low energy. 2  Headaches. 3  Upset stomach, including diarrhoea, constipation and nausea. 4  Aches, pains, and tense muscles. 5  Chest pain and rapid heartbeat.6  Insomnia. 7  Frequent colds and infections. 8  Loss of sexual desire and/or ability. 9  Nervousness and shaking, ringing in the ear.hysical symptoms of stress include: 1  Low energy. 2  Headaches. 3  Upset stomach, including diarrhoea, constipation and nausea. 4  Aches, pains, and tense muscles. 5  Chest pain and rapid heartbeat.
Stress and extreme fatigue may also cause other symptoms such as night sweats, weight change, swollen lymph glands, persistent feelings of thirst, and symptoms of shortness of breath, extreme fatigue and weakness.