ENDOSCOPY 2MORROW VERY NERVOUS

hi my name is steven  im 19 i posted here last time about my condidtion i described my symptoms witch where diarrhea,lots of gas and wheight loss i had my gastros apt and he said its tropical sprue he says hes very certain about it he says the wheight loss is from malabsorption becaus eimnot producing enzymes he just looked at me literaly just looked atme and came up with this conclusion he may and may not be right  i say he may be right because id id live in dominican republic for about 7 years so yeah tropical sprue is common over there and i did bring this condition from over there not here mm let me see what else and its clear im not absorbing nutrients because i feel weak and all that  and i can see i not producing enzymes to good because imnot digesting food properly but tomorrow im having an uper body endoscopy and my questions are what are the risks of dying during the procedure im just very scared because there going to put me to sleep and im wondering is theres another way of doing this without putting me to sleep i dont know maybe numb my throat ?? and also i whant to know if its the same anestia they use for surgery or if they use a strong dossageim just really freaking out plus i have a big anxiety disorder and im scared he might find a tumor in my intestines or something is terribly wrong i just dont know what to think any more can any one help me please or give me some courage at least.. MUCH MUCH THANKS IN ADVANCE  

[boron]

Upper endoscopy is usually NOT done under general anesthesy, but under slight sedation - and you have a choice to refuse even that (if you have sensitive throat, for example, if you don't allow the doc to investigate your throat, then endoscopy without sedation may be unpleasant for you). Additionally, your throat will be sprayed with a local anesthetic and thus numbed. All medications used for this are generally safe.

During the procedure your stomach and upper small intestine will be investigated, and few small pieces of tissue taken (biopsy) - for further investigation under the microscope. There's no other way to make a diagnosis of the sprue (tropical or celiac). I wouldn't say you have a stomach cancer, and small intestinal cancers are rare.

Here is detailed description of the procedure:
http://hcd2.bupa.co.uk/fact_sheets/html/Gastrointestinal.html

If more questions, ask.