Hi, I just got an x-ray of my back for scoliosis , and on the x-ray it showed up that I had a little circular blob under my right rib cage. To add to that, I ve been having ongoing pain in that exact area since September. I had an x-ray done of my abdomen back in October, but it showed nothing; neither did the ultrasound . What is the blob, and should I go to my doctor?