I definitely had sinusitis which caused a very uncomfortable pressure in my face, headaches, and jaw pain (which felt like dental pain but more in the cheekbone). That all eventually resolved after a few weeks of strong antibiotics. During that time, they found that I was low in B12 so I started B12 supplements. The confusing thing still, is that I have frequent tooth pain issues that seem to move around my mouth and rarely show clinical reasons for the pain (ie. xrays show normal) but it feels like I need a root canal. Many of the docs I have seen think it is misfiring pain signals (which I later learned is called neuroplastic pain). One of the more helpful ENT docs suggested that it is likely that there were multiple issues going on at once, which makes diagnosing very challenging. The added frustration is that doctors and dentists seem to all work in individual silos, I believe they are well-meaning but not really trained much in how their speciality might impact another condition.