I've had Endoscopy, when in my 2nd year at university kept getting quite ill (lost a bit of weight amongst other things) and had to be put on an IV drip as my potassium levels were dangerously low, so as part of the investigation I had Endoscopy to rule out bowel related illness including Crones disease.
In the end it turned out not to be anything serious and was sorted out a few weeks later.
__________________
|