They say if you had pain before treatment, it's likely you'll have pain after treatment, more than someone who did not. Glad they are monitoring you closely to rule out any disease. I had neck/ear pain from an enlarged cancerous lymph node high in level ll, near the ear, which diminished during radiation, but continued for a while after, probably from the necrotic tissue still hitting a nerve, and radiation still works just as long as your treatment lasted, so it was probably up til then, 7 weeks. They had to add the fetynal patch to the oxycodene, and seemed worse when laying down, especially during radiation.