actually, u should not visit GPs. They are quite useless when it comes to recurring pain cos they are not trained to deal with it...
- i suggest u get a GP to recommend u to a gov hospital pain specialist or an ortho consultant the wait might be long and most likely than not, they cannot solve the issue.
-anyway, Chinese physicians might be worth a try. You can go to Chong Hwa clinic. Most likely they will try acupuncture on you.
but what i really recommend u is to look for what is called a chiropractor. Mind u , they are not medical doctors...but they are probably ur best best to solve this spine problem
http://chiropractic.org.sg/association-registered-chiropractors.html