Dizziness and PMS: what to know

PMS can include bloating, breast tenderness, mood changes, headache and appetite changes. These may overlap with lightheadedness or a spinning sensation, but a cycle pattern should be confirmed rather than assumed. Heavy menstrual bleeding may contribute to Iron Deficiency Anaemia, which can present with tiredness, pale skin, palpitations or breathlessness as well as dizziness. Dehydration, heat and low blood sugar can occur at any point in the cycle.

Keep a diary for several cycles: record the first day of bleeding, dizziness type, sleep, meals, fluids, pain, headaches, medicines and bleeding amount. Symptoms that occur outside the premenstrual window, steadily worsen or begin suddenly deserve a separate assessment.

Keep regular meals, drink fluids through the day, sleep consistently and stand up gradually. Gentle activity may help some people, while overheating or strenuous exercise can make lightheadedness worse. Use only pain or PMS medicines that are suitable for you and follow the label or a clinician's advice. Arrange a review if symptoms affect daily activities, periods are unusually heavy, or the pattern does not improve with basic measures.

Seek emergency care for fainting with injury, chest pain, severe breathlessness, new weakness, trouble speaking, confusion, a sudden severe headache or a fast irregular heartbeat. Get urgent advice for very heavy bleeding with weakness or near-fainting, persistent vomiting, or dizziness that makes walking unsafe. A clinician may review blood pressure, medicines and blood tests.

Ask whether the timing fits PMS, whether bleeding could be causing anaemia, whether migraine or an inner-ear condition is possible, and which diary details would help guide treatment.