The first sign that you are nearing menopause is a change in your menstrual periods. They may become less frequent. And they may be lighter or heavier than you're used to. Menopause symptoms range from mild (or none) to severe. They include: Hot flashes. Sleep disturbances (insomnia). Emotional changes, such as mood swings or irritability. A change in sexual interest or response. Problems with concentration and memory that are linked to sleep loss and fluctuating hormones (not a permanent sign of aging).