My aunt had something like this, which I believe was misdiagnosed several times before receiving an accurate diagnosis. I believe her diagnosis was trigeminal neuralgia. Her symptoms included excruciating neurological pain and burning at times, and was misdiagnosed as having to do with her teeth at first. Once she was properly diagnosed, she had an operation done and the pain was completely gone. I don't know if there are enough similarities to suggest that you have the same thing, but it sounds like I'd be visiting a neurologist if it continues, and perhaps even a couple of them if one doesn't have much to say. She had to visit multiple before getting the right diagnosis and eventually the right treatment.
I agree - I was thinking that the whole time I was reading your post. I really hope you get some answers. Let us know.
I was thinking of the trigeminal nerve too.
I discovered that trigeminal nerve irritation can cause upsets in the brain stem area. The brain stem is responsible for many autonomic functions.
There can also be a hypersensitivity caused by the irritation, so that messages to and from brain get hyper-sensitized.
It might help if you can book to see a neurologist. I hope all this stuff gets fixed, and stops for you soon.
Believe me, I know. I get weird stuff all over the place from what my neuro said were "migraines". I feel I have got some mild dysautonomia from my nerves being hyper-sensitized.
And it all started in the trigeminal nerve. Caused in my case I think, by walking in snow, ice and blizzards without wearing enough protection on my forehead and head , two and a half years ago
Those of you that have a consistent headache please take note of this. I am subject to regular sinus infections that include headaches. Some are bad enough to put me in bed on pain killers. My most recent episode (three weeks ago) was so bad I had to go to the ER because the pain was so bad. After a CT scan of my head they discovered a combination of dried blood along with some fresh blood had put pressure on my brain. I ended up getting a craniotomy to relieve pressure on the brain. This is life threatening so get a CT scan ASAP to find out what is happening.