Chiros seem to be one of those polarizing topics. Speaking of "professionals" (of any flavor) who SAY they know something but DON'T....

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I went one PT who claimed to be a headache expert, and "dabbled" in chiro & myofascial techniques without certification (or my knowledge). I didn't realize it, and before I knew what was happening, she grabbed my head from behind, jammed it down into my spine (DDD w/ spurs & stenosis c5-c7, which she well knew) and I thought she had broken my neck. Instant migraine @ 8-9 (which feels like a 13 when it's in your head of course). I immediately got up and left. Probably should have gone immediately to the ER. That migraine stayed a week, at which time I was pretty sure I'd be heading to court. Fortunately for everyone it did finally resolve (that migraine) but my neck continued to be sore for weeks afterward.
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Doc