Try one teaspoon of Epsom Salt in a glass of apple juice (or any juice available). The Epsom Salt will relax the biliary ducts and often gives long lasting relief. A hot bath, a heating pad over the gallbladder area, and if you have Castor oil, try putting some of that over the painful area, all might give temporary relief. Tomorrow try taking the juice of one lemon in a glass of water and one tablespoon of olive oil every morning for a week or two. This "mini-flush" should not cause your body to release enough toxins to affect your milk, but may help your gallbladder slowly cleanse.