I was diagnosed with both. PMDD, GAD and Depression. So, over the years I have been on anxiety meds and birth control, as well. I'm not on birth control anymore and my PMDD symptoms have come down a great deal. Anxiety was worse during period and I was also way more emotional, sensitive than expected during that time. One of the natural things that is helping me is a book called WOMAN CODE by Alisa Vitti. It's a book about our endocrine system and part of it deals with menstrual cycle-she recommends different food groups and specific foods to take during each phase of your menstrual cycle and I have been following that for the last 3 months. I find that my periods are less stressful, less painful now ans my mood-swings are not so glaring. Worth a try- hope it helps! And you're definitely not alone in this! Hugs!