Infertility manifests as hypothalamic amenorrhea, a condition marked by low energy availability and menstrual irregularity, with or without undernutrition. Menstrual irregularity refers to both missed periods and the ovulatory cycle in which no eggs are released. Hypothalamic amenorrhea due to chronic deprivation is associated with adrenal fatigue and euthyroid syndrome. Undernutrition may prevent you from getting pregnant if you have a long history of exercising and dieting to lose weight. Returning to normal calorie intake can reverse the problem and allow you to get pregnant. 5. You are losing your hair Hair loss is a fundamental sign of a nutritional deficiency of proteins and carbohydrates, or both. It is accelerated by hormonal changes resulting from chronic undernutrition and a decline in sex hormones such as estrogen, testosterone and progesterone. Additionally, it is also a common symptom of hypothyroidism, a condition caused by prolonged calorie restriction. It is good to deeply reconsider your diet if you notice that your hair is falling out at a very high rate. You should prioritize eating nutrient-rich whole foods to stop hair loss and reverse it. 6. Blood sugar variation