I have been taking yaz for about 3 months the first couple where ok but this month I have been spotting for the last 3 weeks and have had horrible night sweats. I have called my gyn and am waiting to hear back. The nurse said my gyn may want me to come in for some lab work to check my hormone levels. I am not taking bc to prevent pregnancy but for edometriosis, the whole pt was to stop the periods so I would not have pain but I would settle for a reg menstrual cycle vs 3 weeks spotting.