Before I tried out Dr. Clarke's Liver Flush recipe, I used to always get this sour/stale odor every time I stay outside for too long or don't bathe for a day. My condition worsened recently. It doesn't matter if I take two showers every day; the odor would still be there.
It seems to have improved, though, after I did the flush. :) I highly recommend it.
Now...all I have to do is figure out how to get rid of this fecal Body Odor :\