Well, I eat almost only white rice for a month and managed to minimize any odors except one underlying fecal smell that exists no matter what I eat (at least so it seems).
So I think next to TMAU I have some other disorder but do not know what. I have no visible injuries in my anus so I almost began to believe in that controversial "leaky gut" theory.
Fecalodor, I know exactly what you mean. It is for sure the worst part of the condition. Absolutely the same thing here. In fact I had to stop working because of the smell!
What I have noticed is that smell before and after BM began to be equated as years goes by. When I was younger my smell before BM was much less than after BM.
Now the difference is smaller. That is of course a bad thing because before I had less trouble at least between two BMs.
And the overall smell becomes stronger with years.