Until recently, my periods have always lasted about 6 days. For the past four months, my periods have lasted only 3-4 days. I've had numerous additional strange symptoms that sound like perimenopause: insomnia, constipation/bloating, hair loss on head, new hair growth on face, intense premenstrual cramping and lower back pain, low libido, dryer skin, and just last night I had my first night sweat.