Hi. Just 3days ago pain started in the middle of my abdomen. The day after that the pain had directed itself down to the right side and came in pulsating motions. It hurt so bad it would knock me off my feet. This was accompanied by terrible back pain upper and lower, neck pain, and a feeling that my head was a 100 pound water baloon. I went to the hospital where they did blood tests, urine tests, and an abdominal cat scan but they found nothing and I was dismissed with vicodin, motrin, and cipro. Today still am in just as much tear jerking pain, am extremely week, and am now throwing up bile even though I have eaten. Please help if you can. What is this?