Molds tend to make networks of goop called biofilms that attach to the gut wall when there's not a balanced colony of bacteria living in there. Usually gut flora keeps itself in balance.

When something disrupts biofilm colonies they release large amounts of toxins and can really irritate the gut wall. The location you name (2 inches above the belly button) is pretty much right at the beginning of the small intestine.

Of the things that can disrupt biofilms, CS is pretty well up the list. Artemesia Absenthia (wormwood), chaparral, tribulus terrestris (puncture vine), digestive enzymes, raw turnips, can all do it to greater or lesser extents..

Some powdered charcoal or calcium Bentonite as a chaser to the CS around 15-30 minutes after you take it should really help calm down the pain/ease the gut wall.