Its actually from 5+ years ago, left untreated and has become whiplash disorder, is the cause of my back pain and headaches. I've tried osteopath with no results. The bones in my neck and spine are out of alignment from it being untreated for so long, the muscles have scar tissue also.

I've actually found the chiro really gentle, he doesn't do any manipulation with his hands, just a machine which does some clicking on my neck and spine, and he's also using acupuncture... But i know what you mean about chiros, i'd heard the same things. Its been a last resort for me though, i really hope it helps.