Hi I am sorry. I think there are other tests for celiec when your bloodwork says you don't have but there are still reasons why you feel you may. As for pancreas and weight loss. At one time they thought I had pancreatitis. I was also underweight and that had me on a meal plan to gain weight but it was balanced with proper nutrients at each meal and snack to put less stress on this function but also to allow my body to get the nutrients it needed. I am not sure if this could help you in weight gain and nurishment. Hopefully Mrs D will come cause she will know more what to take to help you out. At the hospital what specialties are looking into your case? Hope you feel better and get some direction