i can relate to much ...

i too get those crazy intense "hits' of pain bodywide--
neuro DX: SFSN (small fiber sensory neuropathy) = pain & weakness; dysautonomnia =dysfunctions ( others may be able to share more or better explain -- PN and/or other systems that may be involved)
also allodynia & other hypersensitivitys


i also have "Fibro" Dx and other central pain disorders-- since head trauma accidents, injurys.
and ON & TN (Occipital & Trigeminal Neuralgia}these nerve pains, problems are the worst, most debilitating for me.

wondering if your 'teeth aches'--could be TN or some type of cranial/facial neuralgia??
hope NOT but ... wondering; these nerve pains problems can be difficult to DX and treat.

good luck
hope u find answers, relief Soon...