Fiorella has an extracurricular navicular, known to podiatrists as an accessory navicular. Or at least that is how she has diagnosed herself from her perusal of the web.
In other words, her foot hurts.
It turns out that not all God's children have the same number of bones in their feet. Some of them, usually women, have an extra bone in the instep, an accessory navicular, which can separate from the full-time navicular and lead to trouble.
Whatever the problem turns out to be,
Let's hope that it won't require sur-ger-y.