What you telling is similiar to my condition, I smell not only the foods I ate, but also I think I absorb the smells around and reflect back( I know it' s weird).For example if just only a cup of coffee is put next to me, the extreme coffee smell comes from me. I think BO is kind of related to my colon and digestion, recently I had colon cleansening, but odor is still there. I havent tried yet liver and kidney cleanse, but I think the part of problem is what we eat and what we cant digest.