I used to think the odor was coming from my skin or my feet. But the odor I can tell is coming when I breath out via my nose or mouth. Not a bad breath odor or sinus issues, I should point that out. Maybe is coming from my stomach because the odor intensifies whenever I would eat anything. I don't have tmau or candida. Was tested for both. The odor was more of a intermittent odor. People would say, what's that smell? Specially, when in a enclosed space.