Thanks for your explanation of the rationale.
The links I provided are to trustworthy organizations in healthcare who usually practice evidence-based medicine.
There are many studies referenced here:
https://www.evidencebasedacupuncture.org/acupuncture-scienti...
This one is published in Cell:
https://www.cell.com/neuron/fulltext/S0896-6273(20)30532-8
But of course, one can always find faults in most single studies. It's the accumulative amount of evidence that supports the claim that acupuncture often work for certain types of syndromes. Note that in medicine, few things have irrefutable proof as in math or even engineering.