Are you having any arm or hand pain with this?
or in the past?
Does your chiro do the upper cervical adjustments?

Is the problem mostly in the upperback/neck /head?
vs lower back?

just thinking , many hairdressers can get RSI or TOS which often causes upper back muscles spasms, headaches, hand/arm pain etc
TOS forum- http://neurotalk.psychcentral.com/forumdisplay.php?f=24