What can cause a feeling of nausea during a bm? saliva gets watery sometimes i sweat. this occurs maybe 50% of the time.waiting on hida scan results..

IBS: You may have irritable bowel syndrome or ibs. The symptoms you describe i.e., nausea, sweating and pooling of saliva are some of the symptoms of ibs.

These symptoms: Are consistent with increased activation or tone of the parasympathetic nervous system. This system controls the activities of the body at rest (as opposed to the sympathetic nervous system - flight or fight). Please discuss this possibility with your doctor. It is unclear why this system would be activated. See the following: http://en.Wikipedia.Org/wiki/parasympathetic_nervous_system.