Pick a metabolic disorder, any metabolic disorder.
So many of them will make you smell varying degrees of stinky. Prime suspects of course are trimethylaminuria, Phenylketonuria, Tyrosinaemia, Diabetes Mellitus to name a few.
Stop being ridiculous - before you drink a pint of olive oil with a hint of lime, or swallow a pound of clay and sawdust go the to doctor and get tested for some of these things.