As someone who has experienced Premenstrual Dysphoric Disorder (PMDD) and depression, I can attest that there is a strong connection between these two conditions. PMDD, a severe form of premenstrual syndrome, can cause mood swings, irritability, and anxiety, mirroring the symptoms of depression. In fact, many women who suffer from PMDD also experience depressive episodes outside of their menstrual cycle. This connection could be due to hormonal imbalances or genetic factors, but more research is needed to fully understand the relationship. Ultimately, it's important to recognize the signs of both PMDD and depression and seek professional help when needed.