Molds and the byproducts of their life cycle (gases known as mycotoxins, odors & mold spores) are often airborne throughout the home. Materials (like clothing) are porous and absorbent and tend to collect (and concentrate) these items that often have a very distinct aroma. You might not be aware of it as we tend to become desensitized to the aroma the closer we are to it. By your family and friends will smell it. Better call a mold pro.