This is nerve dysfunction. There are nerves that control function and nerves that control pain. When you have subluxation it causes neuropathophysiology. Improper spinal function can choke, stretch, or irritate delicate nerve tissue. The resulting nervous system dysfunction can cause symptoms elsewhere in the body. Symptoms such as pain, but also function. Like how you are breathing, digesting or even sleeping. A chiropractic examination can help identify if one has a subluxation. Chiropractic care can help with subluxation therefore improving function.