chiropractor,yes or no ?

Had neck pain on and off for about 20 years. Just kept working through it,like a fool! Went to a physiotherapist for 4 visits and it didn't help much. Wondering about trying a chiropractor,heard a lot of horror stories so I'm kinda worried about letting him/her crank my neck. I've had enough,in constant pain now for 7 months and I have to do something.What do you think? Thanks for your replies.