I have had this awful problem for 30 years. I have been back and forth GP's and consultants for 20 of those years.
Finally last year after sitting in my GP's office sobbing armed with a print out of TMAU from the internet I was referred to another consultant.
The Consultant told me he had never heard of this condition. I was sent away, three months later I got a phone call from his secretary telling me to eat 4 eggs and 2 tins of beans then bring my sample in.
Another 3 months later I returned to the Consultant, he told me the results were negative, my result was "12" ?
He then refered me to another Consultant only to receive a letter from him saying there was nothing he could do for me but maybe if I change my clothes more often the odor might go away!
I really don't know how much more I can take.