subluxations (gas building up between discs) cause the blockage of messages sent around the body. So, this means that you can catch a cold, or have any symptoms that you wouldnt have thought a back could cause.
Subluxation is similar to a herniation or a petruding disc. The intervertebral disc is out of normal alignment. Depending on what level is injured, this spinal herniation will create different sensory dysfunctions at different parts of the body. Most common sensations would be numbness, tingling, shooting pains, which can all be changed depending on where and how the spinal disc is bulging onto what portion of the spinal nerve.
A lot of misalignments are from tight muscles on one side and then contralaterally (opposite) will be hypotonic (weak/ lax muscle)muscles. Massaging it is one way to relax a muscle group, but that is usually a temporary solution to allow further treatment...that they may or may not be done, all depends on the treating professional. Other ways are manual stretching/relaxation techniques, while strengthening certain muscles that are lax compared to the opposing side. It's easy to say you have one leg that is 'longer' , but finding out if it is truly longer is the key, and then why. More times than most it is not actually a true anatomical length, but a discrepancy found somewhere else. So finding a professional that can find the root problem and not a temporary fix is how to resolve the problem completely. Hopefully you can find someone who is very experienced in what he/she does and won't jump to any conclusions before ruling out many other factors that the body hides.
Oh yeah, all I really wanted to say was find a competent Physical Therapist and most likely he/she can resolve most physical problems you are having, or sensory since we're talking about the Central Nervous System.