Trusting the internet for medical advice has always been a crap shoot. A runny nose paired with a vivid imagination can quickly metastasize to a terminal prognosis from a number of sources, and often you don’t know the qualifications and motivations of social media advice-givers.

But 27.5 million Americans don’t have health insurance, and even those with health care can find the out-of-pocket costs of physical therapy to be an insurmountable barrier. Sometimes it feels there’s nowhere else to go, really, but online.

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