Well, as I said before, I think my best sugestion is to work with your chiro, but also with your GP, in getting a referal to a tos specialist in the UK, to help diagnosis the problem. They are better trained at this.
Hopefully your GP can get you the referals to the proper people to see. I know its a crappy feeling, expecially when you arent sure what is going on, and how to deal with it. Just a seperate comment....if it hurts, dont do it, try to relax the muscles as much as possible....i know easier said than done. What areas does your chiro work on? and what kind of treatememts does he do? Do they help relieve the symptoms at all?
Jay