Kitchen Cabinets Have a Sickening Smell?

We moved into a condo about 12 years ago that was built in the 80s. All of the kitchen cabinets were cleaned and papered top to bottom and have been changed twice.

When I open the drawers especially the silverware drawer, there is a sickening odor. It isn't sewage or dead smell, but more like old wood in an old rental or something. Just a month ago we totally cleaned with Clorox and rinsed thoroughly all of the inside cabinets. In the past we have used charcoal, Mold Rid, and various odor reducing products. After this last cleaning the smell was gone but only for about two weeks. Now when I open the drawer the smell is back.

Is it possible it is just the old laminate? Is there an expert who does these kinds of inspections? It can't be anything dead because the dividing walls of the fourplex are solid concrete. Help!