Occipiral Neuralgia

Patient: I have been diagnosed with Occipital Neuralgia. My PT has greatly helped with this. But sometimes , it seems that all of a sudden I get a red face and then my jaws ( I have tmj issues) hurt! I took my bp during this time and it has not been high. My face not only gets red, but it feels hot and even makes my eyes burn sometimes. What the heck is this? Is this part of the Occipital Neuralagia? I have also have cardiogenic syncope in 1998, I was told the Occipital Nerulagia could be from this!? Please give me some answers. Thank you. Jayne