What is hyperprolactinemia?What are the main signs and symptoms of hyperprolactinemia?How is hyperprolactinemia diagnosed?What are some of the main medical treatments for hyperprolactinemia?Have any supplements been studied for hyperprolactinemia?How could diet affect hyperprolactinemia?Are there any other treatments for hyperprolactinemia?What causes hyperprolactinemia?What is the hypothalamic-pituitary-adrenal axis?Why does hypothyroidism cause hyperprolactinemia?Does *polycystic ovary syndrome* (PCOS) cause hyperprolactinemia?