Lots of things have similar symptoms but different causes and a slew of things have similar causes but somewhat different symptoms.
For example, how many viruses all basically make flu-or-cold-like symptoms? Have you read about the array of symptoms that a person with MS might - or might not -experience?
Back pain is more like that first category, though. Lots and lots of things can cause it, so it really does depend on the individual. Hard science means we can do some investigations, know what is the more normal causes of such pains, and start treatment from there.
For example, how many viruses all basically make flu-or-cold-like symptoms? Have you read about the array of symptoms that a person with MS might - or might not -experience?
Back pain is more like that first category, though. Lots and lots of things can cause it, so it really does depend on the individual. Hard science means we can do some investigations, know what is the more normal causes of such pains, and start treatment from there.