You went to the bad type of chiropractor, the bend me / push me type that often hurt people and often want x-rays, insurance and see you weekly for life.....
YES, a good / real chiropractor helps fix the curved back problems and never ever suggest damaging x-rays, braces or other medical damage.
A real chiropractor puts your back, back into place and does not nomally need to bend you and as in your case, stretch/hurt your tendons and muscles, from what you described, I would call your guy a quack.