My daughter has been treating for an unknown stomach problem for years. Lately she has has seen several specialists. Her problem begins with no warning in the center of her stomach with a pain. The pain grows until vomiting starts and it cannot be controlled. She ends up at a emergency room for an IV to replace the fluids. Pain killers in the IV will allow the stomach to calm. She is exhausted for the next 12 hours. In December, the specialist recommended the removal of her gall bladder. Once removed the gall bladder was found to be bad. This week, she had another episode. It is thought this is started with anxiety. Is there any explanation to this condition? When she feels the pain begin, is there any prescription drug that will head off the pain increase?