What Is The Cause Of Jaundice And Abdominal Pain?

My 12 yr old daughter has had three bouts of jaundice which lasted about 2 months each. When she is jaundiced, She also has leg pain and upper abdominal pain. During an episode, She sometimes vomits when she eats fat foods, but she can eat whatever she likes when she is not jaundiced. I have taken her to hospital bc at one point, she was rolling on the floor in pain. The docs talk about Gilbert s disease, but I have a very large extended family and nobody has this genetic condition. Since There is no specific test for Gilbert s disease, I want to know if there could be another condition causing these specific symptoms. My daughter was well for the past 4 months, but the symptoms are appearing again.