If you’re in your 30s or 40s and have recently noticed mood swings, night sweats, and other strange symptoms cropping up, you might be a little confused. It’s too early for menopause, isn’t it? Could these symptoms be indicative of something else? Why on earth am I experiencing hot flashes and headaches out of nowhere at this age? If you’ve had these thoughts, you’re not crazy. You might just be experiencing perimenopause.