Because of the tight nature of the space where the styloid ‘lives’ and where cranial nerves come out of your head, certain nerves can be irritated from the existence of a long/thick/angled styloid.
The distal tip lies between the internal and external carotid arteries, pointing medially and anteriorly.4 10 It is thus in close anatomic proximity to several important structures: the internal jugular vein, the internal carotid and occipital arteries and the glossopharyngeal, the vagus, the accessory and the hypoglossal nerves (respectively, the cranial nerves IX, X, XI and XII).5 7 An abnormally curved or elongated SP may injure any of these structures.
Along with facial nerve XII.
Check the Newbies Guide Section about common symptoms & possible explanations, here’s a link: