My sister-in-law have also undergone gallbladder surgery and was suffering with acute pain at right upper abdomen. When we consulted Doctor, they asked her to reduce meal size and increase eating frequency to get relieve or prevent this type of pain. They recommended to drink juice, water, milk and other liquids, aiming for 8 to 10 glasses per day. The doctor also suggested to have foods such as beans, bran cereals, whole wheat bread, vegetables, berries and other fruits known to have a high fiber content as pain medication, or narcotics, can cause constipation after gallbladder removal.