I had seen my chiropractor for 20+ years, and he worked wonders for my tweaked out muscles and helped me learn some stretching moves. After my lumbar fusion, he would only work on my cervical area, as those vertebre are pretty much fused on their own. (lol my crazy body)
Possibly your chiro could provide pressure point massage to relieve the tightness. Its amazing how our spazzed out muscles can cause so many problems, besides pain - to our posture. I agree with the others in this thread, that a knowledgeable professional would only touch you if he honestly knew he could help and not harm anything.