Luka,
Definitely IBS, potentially Crohn's (but doctors are always puzzled by my tests), endometriosis, and sphincter of Oddi dysfunction (yes, another malfunctioning sphincter that causes terrible daily pain, like having a gallbladder attack every day). All of these cause daily abdominal pain and very frequent, painful, loose, urgent trips to the bathroom. The urgency is the thing that really concerns the surgeons. I have to always be very very close to a bathroom at all times as it is now. There is also the big question of whether surgery would even work for me given how much wear and tear the area has to endure every day.