Don wrote, re his stiff neck and the relief he was getting from chiropractic treatment. Don, this does not answer your question, but do you know that stiff necks, sore shoulders are very often the first symptoms of PD and commonly drive people to seek help for a long time before being diagnosed.. Now if you are not being treated for your PD - your neck problem could be being exacerbated by the PD rigidity. Just something to consider... Cheers JOy Graham