I've spent years as a Slave to my menstrual cycle. Feeling shit and not knowing why until D-day and then if dawning on me. So, I've been keeping a diary...and there's a fool proof pattern! I'm so excited by this.
7 days before - massive blind red spot on the right side of my mouth. Some smaller random ones around the chin. Skin on nose goes dry and flakey.
6 days before - giant disgusting spot gets a head. Sometimes two 