Thank you so much for your 4-star review, Duyen! We're glad to hear that the Menstrual Cramps Formula has helped relieve your back pain and bloating — that’s wonderful progress. From a TCM perspective, these symptoms often relate to Qi and Blood stagnation during the menstrual cycle, and your improvement shows that your body is beginning to regain balance. We truly appreciate your feedback and trust in Silkie Herbs, and we hope with continued use you’ll experience even greater comfort and harmony each month!