if you are at a major medical center there is a procedure called an endoscopy with ultrasound that can see all the way down to the pancreas to see if you have any tumors there.  Also how is your calcium, gastrin, and parathroid thyroid levels this is some of the testing you should consider and also possible have a work up for multiple endocrine neoplasia type 1. For more info go to www.multipleendorineneoplasia.org      Linda@hagemanfoundation.org

it is a very difficult to make diagnosis of insulinoma and also it is very difficult to treate the insulinoma, because the tumor will be less than the size of a milimiter and there will me many tumors in the same area, so it is a challenging to doctor to treat such patients,