For those who overpronate, it means the outer edge of the heel touches the bottom to start with as you walk along with your foot rolls far too deeply inward.  Morton's neuroma. This noncancerous growth of fibrous tissue around a nerve normally happens concerning the 3rd and fourth metatarsal heads. https://www.theorthopaedicandpainpractice.com/using-orthopaedic-and-pain-management-strategies-to-tackle-foot-pain-near-the-arch/