This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > OB/GYN Dr. Lisa Masterson explains that women should know their menstrual cycle, because menstrual headaches are often linked to the fluctuation in estrogen right before the cycle. ShareTweet
