For a disorder nearly as common as diabetes, it's awful how few people know about. Of those who do, many don't even think it's real. PMDD is not the same as PMS. PMDD is a serious disorder linked to a woman's menstrual cycle where hormones and neurotransmitters are effected, causing uncontrollable depression, rage, paranoia, anxiety, and many other symptoms. If you need support for this disorder or want help for a loved one who does, come visit us over at www.reddit.com/r/PMDD !