Originally Posted by stillHoping

If it is on both sides I think it is less likely that it is caused by mecahnical damage, since the cranial nerves innervates only one side of the head.


The cervical issues could affect the production of saliva and tears (the sympathetic pathways), but I doubt it is causing your sensory symptoms.
I guess it is more likely that dryness would be caused by over productive sympathetic system or week parasympathetic, or some type of inflammation in the glands, then from a mechanical damage in the cervical spine.

I took some neuroanatomy courses but I am not a physician, so....


I had the trigeminal neuralgia many years ago, luckily it gradually improved and disappered within a few months. I had severe pain attacks on the right side of my face, it felt like all the teeth at that side ache, the ear and the right side of the throat ached like having an infection, the right eye, temple, scalp....
There were many pain attacks each day and touching the area, wind, swollowing food etc were triggers.
Since then sometimes I still feel symptoms in the head like yours, tingling, electric shock, numbness, it comes and goes, but usuallly it is only on one side of the face.
It is pretty wierd to feel the distinct borders... half nose is tingling.... electric shock/reduced sensation only on the upper right lip when putting a moisturizing cream... electric shock when touching the right eye brow but not the left... sensitivity on one side of the scalp when combing my hair...

I don't feel these distinct borders with the numbness, tingling, burning etc in the rest of the body that were caused by the SFN