Dakota... I respect your opinions and agree w/ much. my heart goes out to you..
your feelings that you'll "NEVER" know or find may be valid but perhaps will get a nice surprise ... w/ medical breakthru, knowlege, and help. interventions needed & deserved.
I often feel frustrated, confused, hopeless & helpless....and more "negatives" .....
Affecting others-- family, friends, beloveds-- a vicious cycle ... I'm feeling trapped in [esp. now--too much to get into...] ... but feel there must be some answer, resolution... a better way to Be, Live, have quality of Life... for self and others....

more needs to be done( w/ research, etc.) for Pain--by whatever name, DX, manifestation-- to provide appropriate relief, interventions, treatmts, etc. for those suffering; and hopefully "Cures".... soon.... perhpas even that miracle....

meanwhile more understanding, compassion and validation of our pain, symptoms, etc. by med pros & others. Education is essential along w/ advocacy.

RE: your #2. Indeed, it would be convenient if was all "neat & tidy" ... too often there is overlap, concurring conditions & other factors that confuse & complicate... other exacerbators & stressors....
Drs/specialists have differing views, opinions or even clueless. Tests --when are done--may not provide the "neat" answers, either because the tests are "negative"-normal or were not the most appropriate ( insurance too often governs --won't cover/pay for better options that may provide insight & interventions)
More often we go thru processes of elimination, trial & error w/ meds.... that may help but also may generate more problems & symptoms that get treated w/ more meds.... or DRs who won't prescribe certain meds/treatmts that could help .... again insurance issues or DEA agenda. Medicine/healing shouldn't be political or $$$ based but is...

I 'm rambling-again--and could go on w/ experiences .....

but can't think of anything that will actually help so...

just wishing, hoping, praying you find & get what you need... soon...

Blessings....