@mattey741 is it on one side? I have this on my left side only. I am told it could be from my neck, or from my brain (facial nerve). Trigeminal neuralgia is usually one sided I believe but not sure. So sorry you are suffering.

I have all kinds of sensations all over at different times. "Paresthesias" in arms at times, chills even in a hot shower etc. I am used to them at this point but the facial numbnesss and pain lately has led me to a doctor and some testing for an acoustic neuroma, a benign tumor. Just to be sure. Again, that tends to be one-sided.

Do you have any food sensitivities? My arm sensations got a lot better when I gave up dairy and wheat. I was surprised. I had autoimmune testing which was positive for lupus and scleroderma but so far not damaging. You might want some blood tests and imaging- at least that is what I end up with.

Massage and cranial sacral work can help. I see a neuro and an integrative medicine doctor and the latter suggests supplements to deal with inflammation of nerves. Hope you get some relief!