Hi Sylvia, my hubs NETS started with a small bowl obstruction, ended up at the ER (2019) and in surgery the same day. Unfortunately for you, you have time to ponder and worry about what will or won't happen and the end result. My hubs went in thinking his ulcer was acting up and it turned into a 10 day hospital stay. So he didn't have any time to do anything. I, however, was the worrier as most of us caregivers are.
He had about a 6 to 8" section (maybe longer) of his small bowl removed along with some lymph nodes. His surgery went well. They did it laproscopic so you don't even see the scar (went thru the belly button). Diarrhea is a possible thing, of which my husband does have bouts with, however the drs believe it's from the cancer itself not the surgery. I wouldn't worry too much about that. You may get it due to the cancer as he has or you may not. And it's easily controlled by an anti-diarrhea OTC med. Or the dr can advise if it's too much and affecting other things. Just try not to think about that. And also, keep in mind the drs have to tell you everthing that could possible happen if things go sideways. My suggestion is research the surgery and possible problems. Remember, again disclosing all possibikities of issues and/or problems. Write questions down.... one... laproscopic? Also, find out how familiar he/ she is with NETS. You want an Oncologist AND a SURGICAL ONCOLIGIST who is VERY familiar with NETS. NETS are not common and while a general surgeon can operate on a small bowl obstruction you want one who also is an Oncologist and preferable one who is familiar with NETS. Also, don't be afraid to get a 2nd opinion. Most drs don't have an issue with that.
Do your research, write down your questions, ask, get a 2nd opinion if necessary and then once satisfied... do something to keep your mind off the surgery. Or you'll worry yourself crazy. Get together with friends, family and LAUGH......I have faith it will go well and this will be behind you soon. Good luck to you and I hope the above helped.