What Causes Upper Abdominal Pain?

Question: I'm a 42 yr old female. I started having pain on the right side of my upper abdomen a few weeks ago. It only happens when I get up from a seated position, cough, sneeze, or bend over. It is a very intense, burning pain limited to a small area. It seems to radiate downward 1-2 inches in a straight line. Then it disappears quickly. Over the past 2 days I noticed similar, although less intense pain, on the left side of my abdomen: 1) Directly across from the initial pain on the right 2) A little further down on the left. Again, I only feel pain when coughing, sneezing, or bending over. The pain is mitigated when I press on my abdomen while coughing or wear an abdominal support belt. I do not feel pain at any other time. I do feel a bit bloated (gassy) lately, which is unusual for me. Any idea what it could be? Please don't advise me to see a doctor (unless it could be life threatening); I don't have a doctor or medical insurance at this time. Thanks!

Thanks for your reply. Can it still be kidney stones if I have no back pain? All the pain is in the front, brought on by movement (primarily getting up from seated, bending over; cough and sneeze infrequently) and quickly fades. My husband had kidney stones a few years ago; he was in constant pain- mostly on the side/back of one side (flank pain). He also had bloody urine, but I do not have either of these symptoms. Thanks again.