PMS signs and symptoms. PMS stands for premenstrual syndrome. Women may experience PMS symptoms around 5-14 days before their period starts. In this short clip, Nurse Sarah demonstrates what a woman may go through as PMS symptoms appear before a period begins. PMS signs and symptoms can range from brain fog, bloating, feeling irritable, hunger/cravings, low libido, tiredness, and more. Which PMS symptoms do you struggle with most, ladies? #PMS #pmsproblems #pmsing #pmscheck #premenstrual