Hi...have been having pain on the right side around stomach and rib cage and sometimes down the right side. Am thinking it maybe it is a gas bubble. Had my gallbladder out in 2006. I ve been doing weight watchers and have increased the amount of vegetables and fruit I eat considerably plus have been power walking about 3mi every other day. I ate some pecans earlier today and within a couple hours started having the pain. I do have a hiaetal (sp) hernia. Also had a diet coke earlier today. Think it is just gas. This has happened several times within the past couple weeks.