i don't know fecal odor but it's worth looking into,leave no rocks unturned (you know). One thing that's come to mind is about our bodies reabsorbtion of liquids before evacuation of waste matter.What may be inside the liquid may not get expelled completely or at all but be recycled over and over again ,therefore anything within the liquid doesn't leave the body so it's a continuous cycle .If there's anything within the liquid i.e(bacteria,or anything that could cause the smell) if it doesn't leave the body then it will (hypothetically) continue to cause the smell becoming worse in some instances because of the bacterial multiplication rate .So if you don't get rid of the culprit then you continually have the problem. One of the worse enemies you could have is one that is unknown. may God reveal to us all what seems to be trying to stay hidden behind our odor(s)and the cure(s)related to each person. I pray that each person's liver and fmo3 gene be able to make fmo3 enzyme .or an substitute may be found so that the liver can process normally the tmau and sulphur,etc that is being produced in our bodies and that it renders it smell odorless like it's supposed to be in Jesus' name. Those of us having the fecal odor or other strong odors ,i believe may not not have tmau directly but that it could be some sub-division of it. blood-borne diseases?