I've been going through some of your posts, and you seem to be pretty sure that you got TMAU. However, you never mentioned whether you got tested or not. Did you get tested for TMAU?
As far as I know, seeing as how you were on Antibiotics , you were suffering from IBS - C, and how certain foods really make you worse, and how being constipated makes you smell worse, are you sure you have TMAU?
Remember: Yeast infection (aka candida) may also be mistaken as a fishy odor around the groins.
Please let me know if you got tested for TMAU, or your symptoms are similar.