I get stomach pain in the night times ONLY, right under my breast line on the right side. The pain confides under the breast area on upper right side of the stomach and on the upper right back as well. Sometimes it goes upto the chest. The pain is consistent on the same spot and is only bearable while in a sitting posture. Pains more while lying down. Started facing this problem after being on primolut n 10 mg daily for stopping my prolonged periods which had crossed 14 days of bleeding. Did not have such a problem before starting primolut n. Currently taking pan D every morning on empty stomach assuming its gas. Please help.