I am having pain in my right side, in a band from the waist towards my belly button. It is constant and moderate, seems to be worse when I am active, and feels better if I rest or rub it. I had a cesarean delivery five and a half weeks ago. I am breastfeeding. I am taking labetalol for blood pressure and had been taking ibuprofen for headaches and pain during nursing, but stopped that when the side pain started. I am having a small amount of vaginal bleeding (after having stopped). What could it be and what should I do?