I was perfectly fine on birth control for 10+ years and have had my tubes tied for 10 years now. What you describe is happening to me somewhat and I think it is age related, and reaching peri-menopause in my case. My cycles are getting farther and farther apart (basically skipping 2 or 3 months at a time) and right before I do get a period I get very irritable, I get zits, I feel bloated and crampy and crave sweets. When I was younger I never felt any of that, and my periods would always surprise me, that's why the pill was nice since it made my cycle predictable. Premenstrual dysphoric disorder (PMDD) is a condition marked by severe depression symptoms, irritability, and tension before menstruation. These symptoms are more severe than those seen with premenstrual syndrome (PMS). You could have your doctor check you for PMDD. Good luck.